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MR ZblDošlý, Ondřej. The multiplicity criteria for zero points of second order differential equations. Mathematica slovaca, Tome 42 (1992) no. 2, pp. 181-193. http://geodesic.mathdoc.fr/item/MASLO_1992_42_2_a5/
@article{MASLO_1992_42_2_a5,
author = {Do\v{s}l\'y, Ond\v{r}ej},
title = {The multiplicity criteria for zero points of second order differential equations},
journal = {Mathematica slovaca},
pages = {181--193},
year = {1992},
volume = {42},
number = {2},
mrnumber = {1170102},
zbl = {0754.34026},
language = {en},
url = {http://geodesic.mathdoc.fr/item/MASLO_1992_42_2_a5/}
}
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