@article{PDM_2017_3_a0,
     author = {M. I. Anokhin},
     title = {On the two definitions of degree of a~function over an associative, commutative ring},
     journal = {Prikladna\^a diskretna\^a matematika},
     pages = {5--19},
     publisher = {mathdoc},
     number = {3},
     year = {2017},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/PDM_2017_3_a0/}
}