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@article{DE_1998_34_11_a15, author = {A. P. Abramov}, title = {Nonregular points in a certain model of ``gray'' economy}, journal = {Differencialʹnye uravneni\^a}, pages = {1557--1558}, publisher = {mathdoc}, volume = {34}, number = {11}, year = {1998}, language = {ru}, url = {http://geodesic.mathdoc.fr/item/DE_1998_34_11_a15/} }
A. P. Abramov. Nonregular points in a certain model of ``gray'' economy. Differencialʹnye uravneniâ, Tome 34 (1998) no. 11, pp. 1557-1558. http://geodesic.mathdoc.fr/item/DE_1998_34_11_a15/