@article{IVM_2007_12_a1,
     author = {M. A. Akivis and V. V. Goldberg},
     title = {Differential geometry of {Lagrange-like} webs},
     journal = {Izvesti\^a vys\v{s}ih u\v{c}ebnyh zavedenij. Matematika},
     pages = {19--32},
     publisher = {mathdoc},
     number = {12},
     year = {2007},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/IVM_2007_12_a1/}
}