@article{DE_2002_38_3_a7,
     author = {J. Hay},
     title = {Necessary {Conditions} for the {Existence} of {Global} {Solutions} of {Higher-Order} {Nonlinear} {Ordinary} {Differential} {Inequalities}},
     journal = {Differencialʹnye uravneni\^a},
     pages = {344--350},
     publisher = {mathdoc},
     volume = {38},
     number = {3},
     year = {2002},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/DE_2002_38_3_a7/}
}