@article{IVM_2001_3_a1,
     author = {A. V. Boyarshinova},
     title = {An obstruction to the integrability of an infinitesimal deformation of a~$k$-dual structure},
     journal = {Izvesti\^a vys\v{s}ih u\v{c}ebnyh zavedenij. Matematika},
     pages = {7--13},
     publisher = {mathdoc},
     number = {3},
     year = {2001},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/IVM_2001_3_a1/}
}