@article{DE_1985_21_3_a24,
     author = {S. G. Oleinik},
     title = {Conditions for existence and construction of {Lyapunov--Samojlenko} functions for investigation of the stability of solutions 
},
     journal = {Differencialʹnye uravneni\^a},
     pages = {530--531},
     publisher = {mathdoc},
     volume = {21},
     number = {3},
     year = {1985},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/DE_1985_21_3_a24/}
}