@article{DE_1995_31_1_a22, author = {V. V. Veremenyuk}, title = {A formula for the rotation number of a first-order equation whose right-hand side is quasiperiodic in time}, journal = {Differencialʹnye uravneni\^a}, pages = {158--159}, publisher = {mathdoc}, volume = {31}, number = {1}, year = {1995}, language = {ru}, url = {http://geodesic.mathdoc.fr/item/DE_1995_31_1_a22/} }