@article{CRMATH_2017__355_4_460_0,
     author = {Schmidt, Benjamin and Wolfson, Jon},
     title = {Three-manifolds of constant vector curvature one},
     journal = {Comptes Rendus. Math\'ematique},
     pages = {460--463},
     publisher = {Elsevier},
     volume = {355},
     number = {4},
     year = {2017},
     doi = {10.1016/j.crma.2017.03.001},
     language = {en},
     url = {http://www.numdam.org/articles/10.1016/j.crma.2017.03.001/}
}