@article{01417624,
title = {On weighted positivity of ordinary differential operators.},
journal = {Journal of Inequalities and Applications [electronic only]},
volume = {4},
year = {1999},
pages = {301-314},
doi = {10.1155/S1025583499000417},
zbl = {0957.34078},
language = {en},
url = {http://dml.mathdoc.fr/item/01417624}
}
Eilertsen, Stefan. On weighted positivity of ordinary differential operators.. Journal of Inequalities and Applications [electronic only], Tome 4 (1999) pp. 301-314. doi : 10.1155/S1025583499000417. http://gdmltest.u-ga.fr/item/01417624/