@article{120099, author = {Stan\v ek, Svatoslav}, title = {On the generalized Floquet theory of disconjugate differential equations $y'' = q(t) y$}, journal = {Acta Universitatis Palackianae Olomucensis. Facultas Rerum Naturalium. Mathematica}, volume = {20}, year = {1981}, pages = {101-115}, zbl = {0491.34038}, mrnumber = {0645893}, language = {en}, url = {http://dml.mathdoc.fr/item/120099} }
Staněk, Svatoslav. On the generalized Floquet theory of disconjugate differential equations $y'' = q(t) y$. Acta Universitatis Palackianae Olomucensis. Facultas Rerum Naturalium. Mathematica, Tome 20 (1981) pp. 101-115. http://gdmltest.u-ga.fr/item/120099/
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