@article{INTG_1989_21_a5,
     author = {A. M. Shelekhov},
     title = {Classification of multidimensional three-webs according to closure conditions},
     journal = {Itogi Nauki i Tekhniki. Seriya Problemy Geometrii. Trudy Geometricheskogo Seminara},
     pages = {109--154},
     year = {1989},
     volume = {21},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/INTG_1989_21_a5/}
}