@article{FAA_1976_10_1_a4,
     author = {V. M. Zakalyukin},
     title = {Lagrangian and {Legendrian} singularities},
     journal = {Funkcionalʹnyj analiz i ego prilo\v{z}eni\^a},
     pages = {26--36},
     publisher = {mathdoc},
     volume = {10},
     number = {1},
     year = {1976},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/FAA_1976_10_1_a4/}
}