@article{DE_1989_25_3_a26,
     author = {V. A. Rantsevich and A. M. Samson},
     title = {Limit cycles of a dynamical system that models the functioning of a laser},
     journal = {Differencialʹnye uravneni\^a},
     pages = {540--542},
     publisher = {mathdoc},
     volume = {25},
     number = {3},
     year = {1989},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/DE_1989_25_3_a26/}
}