@article{IM2_1970_4_1_a8,
     author = {V. G. Limanskii},
     title = {A qualitative investigation of stable first-order differential equations with variable retardation},
     journal = {Izvestiya. Mathematics },
     pages = {159--178},
     publisher = {mathdoc},
     volume = {4},
     number = {1},
     year = {1970},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/IM2_1970_4_1_a8/}
}