@article{MZM_1996_59_6_a0,
     author = {P. M. Akhmet'ev},
     title = {$\operatorname{Prem}$-mappings, triple self-intersection points of oriented surfaces, and the {Rokhlin} signature theorem},
     journal = {Matemati\v{c}eskie zametki},
     pages = {803--810},
     publisher = {mathdoc},
     volume = {59},
     number = {6},
     year = {1996},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/MZM_1996_59_6_a0/}
}