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@article{PFMT_2016_3_a6, author = {E. V. Musafirov}, title = {Admissible perturbations of {Langford} system}, journal = {Problemy fiziki, matematiki i tehniki}, pages = {47--51}, publisher = {mathdoc}, number = {3}, year = {2016}, language = {ru}, url = {http://geodesic.mathdoc.fr/item/PFMT_2016_3_a6/} }
E. V. Musafirov. Admissible perturbations of Langford system. Problemy fiziki, matematiki i tehniki, no. 3 (2016), pp. 47-51. http://geodesic.mathdoc.fr/item/PFMT_2016_3_a6/