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@article{MASLO_1982__32_4_a12, author = {Mamrilla, Juraj}, title = {On the oscillation of solutions of $y\sp{(2n)}+By'+A\sb 1(t)y=0$, $B<0$}, journal = {Mathematica slovaca}, pages = {405--412}, publisher = {mathdoc}, volume = {32}, number = {4}, year = {1982}, mrnumber = {676578}, zbl = {0506.34029}, language = {en}, url = {http://geodesic.mathdoc.fr/item/MASLO_1982__32_4_a12/} }
Mamrilla, Juraj. On the oscillation of solutions of $y\sp{(2n)}+By'+A\sb 1(t)y=0$, $B<0$. Mathematica slovaca, Tome 32 (1982) no. 4, pp. 405-412. http://geodesic.mathdoc.fr/item/MASLO_1982__32_4_a12/