[1] H. Abbaspour, R. L. Cohen & K. Gruher - "String topology of Poincaré duality groups", in Groups, homotopy and configuration spaces, Geom. Topol. Monogr., vol. 13, 2008, p. 1-10. | MR 2508199 | Zbl 1141.55004

[2] H. Abbaspour & M. Zeinalian - "String bracket and flat connections", Algebr. Geom. Topol 7 (2007), p. 197-231. | Article | MR 2308942 | Zbl 1142.55006

[3] L. Abrams - "Two-dimensional topological quantum field theories and Frobenius algebras", J. Knot Theory Ramifications 5 (1996), p. 569-587. | Article | MR 1414088 | Zbl 0897.57015

[4] M. F. Atiyah & R. Bott - "The moment map and equivariant cohomology", Topology 23 (1984), p. 1-28. | Article | MR 721448 | Zbl 0521.58025

[5] M. F. Atiyah & D. O. Tall - "Group representations, $\lambda$-rings and the $J$-homomorphism", Topology 8 (1969), p. 253-297. | Article | MR 244387 | Zbl 0159.53301

[6] K. Behrend - "Cohomology of stacks", in Intersection theory and moduli, ICTP Lect. Notes, XIX, Abdus Salam Int. Cent. Theoret. Phys., Trieste, 2004, p. 249-294. | MR 2172499 | Zbl 1081.58003

[7] K. Behrend, G. Ginot, B. Noohi & P. Xu - "String topology for loop stacks", C. R. Math. Acad. Sci. Paris 344 (2007), p. 247-252. | Article | MR 2292996 | Zbl 1113.14005

[8] K. Behrend & P. Xu - "Differentiable stacks and gerbes", J. Symplectic Geometry 9 (2011), p. 285-341. | Article | MR 2817778 | Zbl 1227.14007

[9] D. J. Benson - Representations and cohomology. I, second ed., Cambridge Studies in Advanced Math., vol. 30, Cambridge Univ. Press, 1998. | Zbl 0908.20001

[10] N. Berline, E. Getzler & M. Vergne - Heat kernels and Dirac operators, Grund. Math. Wiss., vol. 298, Springer, 1992. | MR 2273508 | Zbl 0744.58001

[11] G. E. Bredon - Introduction to compact transformation groups, Pure and Applied Mathematics, vol. 46, Academic Press, 1972. | MR 413144 | Zbl 0246.57017

[12] J.-L. Brylinski - Loop spaces, characteristic classes and geometric quantization, Progress in Math., vol. 107, Birkhäuser, 1993. | MR 1197353 | Zbl 0823.55002

[13] A. S. Cattaneo, J. Fröhlich & B. Pedrini - "Topological field theory interpretation of string topology", Comm. Math. Phys. 240 (2003), p. 397-421. | Article | MR 2005849 | Zbl 1052.81095

[14] M. Chas & D. Sullivan - "String topology", preprint arXiv:GT/9911159. | Zbl 1185.55013

[15] D. Chataur - "A bordism approach to string topology", Int. Math. Res. Not. 2005 (2005), p. 2829-2875. | Article | MR 2180465 | Zbl 1086.55004

[16] D. Chataur & L. Menichi - "String topology of classifying spaces", preprint arXiv:AT/0801.0174. | Article | MR 2980450 | Zbl 1253.55008

[17] W. Chen & Y. Ruan - "A new cohomology theory of orbifold", Comm. Math. Phys. 248 (2004), p. 1-31. | Article | MR 2104605 | Zbl 1063.53091

[18] T. Coates, Y.-P. Lee, A. Corti & H.-H. Tseng - "The quantum orbifold cohomology of weighted projective spaces", Acta Math. 202 (2009), p. 139-193. | Article | MR 2506749 | Zbl 1213.53106

[19] R. L. Cohen - "The Floer homotopy type of the cotangent bundle", preprint arXivrAT/0702852. | MR 2761853 | Zbl 1226.53086

[20] R. L. Cohen & V. Godin - "A polarized view of string topology", in Topology, geometry and quantum field theory, London Math. Soc. Lecture Note Ser., vol. 308, Cambridge Univ. Press, 2004, p. 127-154. | Article | MR 2079373 | Zbl 1095.55006

[21] R. L. Cohen & J. D. S. Jones - "A homotopy theoretic realization of string topology", Math. Ann. 324 (2002), p. 773-798. | Article | MR 1942249 | Zbl 1025.55005

[22] R. L. Cohen, J. D. S. Jones & J. Yan - "The loop homology algebra of spheres and projective spaces", in Categorical decomposition techniques in algebraic topology (Isle of Skye, 2001), Progr. Math., vol. 215, Birkhäuser, 2004, p. 77-92. | MR 2039760 | Zbl 1054.55006

[23] R. L. Cohen & A. A. Voronov - "Notes on string topology", in String topology and cyclic homology, Adv. Courses Math. CRM Barcelona, Birkhäuser, 2006, p. 1-95. | MR 2240287

[24] K. Costello - "Topological conformal field theories and Calabi-Yau categories", Adv. Math. 210 (2007), p. 165-214. | MR 2298823 | Zbl 1171.14038

[25] K. Costello, "Topological conformal field theories and gauge theories", Geom. Topol. 11 (2007), p. 1539-1579. | Article | MR 2326951 | Zbl 1139.32006

[26] R. Dijkgraaf & E. Witten - "Topological gauge theories and group cohomology", Comm. Math. Phys. 129 (1990), p. 393-429. | Article | MR 1048699 | Zbl 0703.58011

[27] B. Fantechi & L. Göttsche - "Orbifold cohomology for global quotients", Duke Math. J. 117 (2003), p. 197-227. | Article | MR 1971293 | Zbl 1086.14046

[28] Y. Félix, J.-C. Thomas & M. Vigué-Poirrier - "Rational string topology", J. Eur. Math. Soc. (JEMS) 9 (2007), p. 123-156. | EuDML 277192 | MR 2283106 | Zbl 1200.55015

[29] D. S. Freed, M. J. Hopkins & C. Teleman - "Twisted equivariant $K$-theory with complex coefficients", J. Topol. 1 (2008), p. 16-44. | Article | MR 2365650 | Zbl 1188.19005

[30] W. Fulton & R. Macpherson - "Categorical framework for the study of singular spaces", Mem. Amer. Math. Soc. 31 (1981). | MR 609831 | Zbl 0467.55005

[31] E. Getzler - "Batalin-Vilkovisky algebras and two-dimensional topological field theories", Comm. Math. Phys. 159 (1994), p. 265-285. | Article | MR 1256989 | Zbl 0807.17026

[32] V. Godin - "Higher string topology operations", preprint arXiv:0711.4859.

[33] R. F. Goldin & M. Harada - "Orbifold cohomology of hypertoric varieties", Internat. J. Math. 19 (2008), p. 927-956. | Article | MR 2446508 | Zbl 1160.53024

[34] R. F. Goldin, T. S. Holm & A. Knutson - "Orbifold cohomology of torus quotients", Duke Math. J. 139 (2007), p. 89-139. | Article | MR 2322677 | Zbl 1159.14029

[35] A. González, E. Lupercio, C. Segovia, B. Uribe & M. A. Xicoténcatl - "Chen-Ruan cohomology of cotangent orbifolds and Chas-Sullivan string topology", Math. Res. Lett. 14 (2007), p. 491-501. | Article | MR 2318652 | Zbl 1127.53073

[36] K. Gruher & P. Salvatore - "Generalized string topology operations", Proc. Lond. Math. Soc. 96 (2008), p. 78-106. | Article | MR 2392316 | Zbl 1143.57012

[37] V. W. Guillemin & S. Sternberg - Supersymmetry and equivariant de Rham theory, Mathematics Past and Present, Springer, 1999. | MR 1689252 | Zbl 0934.55007

[38] P. Hu, I. Kriz & A. A. Voronov - "On Kontsevich's Hochschild cohomology conjecture", Compos. Math. 142 (2006), p. 143-168. | Article | MR 2197407 | Zbl 1109.18001

[39] K. Igusa - Higher Franz-Reidemeister torsion, AMS/IP Studies in Advanced Math., vol. 31, Amer. Math. Soc., 2002. | MR 1945530 | Zbl 1016.19001

[40] T. J. Jarvis, R. Kaufmann & T. Kimura - "Stringy $K$-theory and the Chern character", Invent. Math. 168 (2007), p. 23-81. | Article | MR 2285746 | Zbl 1132.14047

[41] Y. Jiang - "The orbifold cohomology ring of simplicial toric stack bundles", Illinois J. Math. 52 (2008), p. 493-514. | MR 2524648 | Zbl 1231.14002

[42] S. Kallel & P. Salvatore - "Rational maps and string topology", Geom. Topol. 10 (2006), p. 1579-1606. | Article | MR 2284046 | Zbl 1204.58006

[43] M. Kashiwara & P. Schapira - Sheaves on manifolds, Grund. Math. Wiss., vol. 292, Springer, 1990. | MR 1074006 | Zbl 0709.18001

[44] J.-L. Loday - "Opérations sur l'homologie cyclique des algèbres commutatives", Invent Math. 96 (1989), p. 205-230. | Article | EuDML 143678 | MR 981743 | Zbl 0686.18006

[45] E. Lupercio & B. Uribe - "Loop groupoids, gerbes, and twisted sectors on orbifolds", in Orbifolds in mathematics and physics (Madison, WI, 2001), Contemp. Math., vol. 310, Amer. Math. Soc., 2002, p. 163-184. | Article | MR 1950946 | Zbl 1041.58008

[46] E. Lupercio, B. Uribe & M. A. Xicoténcatl - "The loop orbifold of the symmetric product", J. Pure Appl. Algebra 211 (2007), p. 293-306. | Article | MR 2340450 | Zbl 1148.55005

[47] E. Lupercio, B. Uribe & M. A. Xicoténcatl, "Orbifold string topology", Geom. Topol. 12 (2008), p. 2203-2247. | Article | MR 2431019 | Zbl 1149.55005

[48] M. Markl, S. Shnider & J. Stasheff - Operads in algebra, topology and physics, Mathematical Surveys and Monographs, vol. 96, Amer. Math. Soc., 2002. | MR 1898414 | Zbl 1017.18001

[49] E. Meinrenken - "Equivariant cohomology and the Cartan model", in Encyclopedia of Mathematical Physics, Elsevier, 2006. | Article

[50] I. Moerdijk & J. Mrčun - "Lie groupoids, sheaves and cohomology", in Poisson geometry, deformation quantisation and group representations, London Math. Soc. Lecture Note Ser., vol. 323, Cambridge Univ. Press, 2005, p. 145-272. | MR 2166453 | Zbl 1082.58018

[51] B. Noohi - "Mapping stacks of topological stacks", J. reine angew. Math. 646 (2010), p. 117-133. | MR 2719557 | Zbl 1237.57027

[52] B. Noohi, "Foundations of topological stacks, I", preprint https://arxiv.org/abs/math/0503247.

[53] B. Noohi, "Homotopy types of topological stacks", preprint arXiv:0808.3799. | MR 2927363 | Zbl 1264.55010

[54] P. Salvatore & N. Wahl - "Framed discs operads and Batalin-Vilkovisky algebras", Q. J. Math. 54 (2003), p. 213-231. | Article | MR 1989873 | Zbl 1072.55006

[55] G. Segal - "Two-dimensional conformal field theories and modular functors", in IXth International Congress on Mathematical Physics (Swansea, 1988), Hilger, 1989, p. 22-37. | MR 1033753

[56] G. Segal, "The definition of conformai field theory", in Topology, geometry and quantum field theory, London Math. Soc. Lecture Note Ser., vol. 308, Cambridge Univ. Press, 2004, p. 421-577. | MR 2079383 | Zbl 1372.81138

[57] A. Strøm - "Note on cofibrations", Math. Scand. 19 (1966), p. 11-14. | Article | EuDML 165952 | MR 211403 | Zbl 0145.43604

[58] A. Strøm, "Note on cofibrations. II", Math. Scand. 22 (1968), p. 130-142. | Article | EuDML 166037 | MR 243525 | Zbl 0181.26504

[59] D. Sullivan - "String topology: Background and present state", preprint arXiv:AT/0710.4141. | Article | MR 2459297 | Zbl 1171.55003

[60] H. Tamanoi - "A homotopy theoretic proof of the BV identity in loop homology", preprint arXiv:AT/0706.1277.

[61] U. Tillmann - "On the homotopy of the stable mapping class group", Invent. Math. 130 (1997), p. 257-275. | Article | MR 1474157 | Zbl 0891.55019

[62] A. A. Voronov - "Notes on universal algebra", in Graphs and patterns in mathematics and theoretical physics, Proc. Sympos. Pure Math., vol. 73, Amer. Math. Soc., 2005, p. 81-103. | Article | MR 2131012 | Zbl 1083.18005

[63] G. W. Whitehead - Elements of homotopy theory, Graduate Texts in Math., vol. 61, Springer, 1978. | Article | MR 516508 | Zbl 0406.55001

[64] C. Zhu -"$n$-groupoids and stacky groupoids", Int. Math. Res. Not. 2009 (2009), p. 4087-4141. | MR 2549951 | Zbl 1180.22006