@article{IM2_1985_25_1_a1,
     author = {S. A. Gulevich},
     title = {On~integrability of the {Banach} indicatrix of a~smooth mapping},
     journal = {Izvestiya. Mathematics},
     pages = {19--44},
     year = {1985},
     volume = {25},
     number = {1},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/IM2_1985_25_1_a1/}
}