no. 4
Enumeration under group action
Annali della Scuola Normale Superiore di Pisa - Classe di Scienze, Série 4, Tome 4 (1977) no. 4, pp. 637-646. 
@article{ASNSP_1977_4_4_4_637_0,
     author = {Rota, Gian-Carlo and Smith, David A.},
     title = {Enumeration under group action},
     journal = {Annali della Scuola Normale Superiore di Pisa - Classe di Scienze},
     pages = {637--646},
     publisher = {Scuola normale superiore},
     volume = {Ser. 4, 4},
     number = {4},
     year = {1977},
     zbl = {0367.05008},
     mrnumber = {498171},
     language = {en},
     url = {http://www.numdam.org/item/ASNSP_1977_4_4_4_637_0/}
}
TY  - JOUR
AU  - Rota, Gian-Carlo
AU  - Smith, David A.
TI  - Enumeration under group action
JO  - Annali della Scuola Normale Superiore di Pisa - Classe di Scienze
PY  - 1977
DA  - 1977///
SP  - 637
EP  - 646
VL  - Ser. 4, 4
IS  - 4
PB  - Scuola normale superiore
UR  - http://www.numdam.org/item/ASNSP_1977_4_4_4_637_0/
UR  - https://zbmath.org/?q=an%3A0367.05008
UR  - https://www.ams.org/mathscinet-getitem?mr=498171
LA  - en
ID  - ASNSP_1977_4_4_4_637_0
ER  - 
Rota, Gian-Carlo; Smith, David A. Enumeration under group action. Annali della Scuola Normale Superiore di Pisa - Classe di Scienze, Série 4, Tome 4 (1977) no. 4, pp. 637-646. http://www.numdam.org/item/ASNSP_1977_4_4_4_637_0/

[1] N.G. De Bruijn, Polya's theory of counting, in Applied Combinatorial Mathematics, ed. by E. F. BECKENBACH, Wiley, 1964, pp. 144-184. | Zbl 0144.00601

[2] N.G. De Bruijn, Colour patterns which are invariant under a given permutation of the colours, J. Combinatorial Theory, 2 (1967), pp. 418-421. | MR 215751 | Zbl 0158.01401

[3] G.-C. Rota, On the foundations of combinatorial theory, I : Theory of Möbius functions, Z. Wahrscheinlichkeitstheorie, 2 (1964), pp. 340-368. | MR 174487 | Zbl 0121.02406

[4] G.-C. Rota, Baxter algebras and combinatorial identities, II, Bull. Amer. Math. Soc., 75 (1969), pp. 330-334. | MR 244070 | Zbl 0319.05008

[5] D.A. Smith, Incidence functions as generalized arithmetic functions, I, Duke Math. J., 34 (1967), pp. 617-634. | MR 219465 | Zbl 0168.26302

[6] D.A. Smith, Incidence functions as generalized arithmetic functions, II, Duke Math. J., 36 (1969), pp. 15-30. | MR 242757 | Zbl 0186.02003

[7] D.A. Smith, Multiplication operators on incidence algebras, Indiana Univ. Math. J., 20 (1970), pp. 369-383. | MR 263717 | Zbl 0209.04003