@article{IVM_1988_5_a1,
     author = {M. I. Gil' and L. L. Shargorodskaya},
     title = {Conditions for the boundedness of solutions and existence of limit cycles for scalar differential equations of a~certain type},
     journal = {Izvesti\^a vys\v{s}ih u\v{c}ebnyh zavedenij. Matematika},
     pages = {6--10},
     publisher = {mathdoc},
     number = {5},
     year = {1988},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/IVM_1988_5_a1/}
}