@article{bwmeta1.element.desklight-46dd2fbc-15ee-4d75-8164-adfe4db3d43e,
author = {Philip Hartman},
title = {Logarithmic derivatives of solutions of disconjugate differential equations},
journal = {Annales Polonici Mathematici},
volume = {29},
year = {1974},
pages = {173-187},
zbl = {0293.34017},
language = {en},
url = {http://dml.mathdoc.fr/item/bwmeta1.element.desklight-46dd2fbc-15ee-4d75-8164-adfe4db3d43e}
}
Philip Hartman. Logarithmic derivatives of solutions of disconjugate differential equations. Annales Polonici Mathematici, Tome 29 (1974) pp. 173-187. http://gdmltest.u-ga.fr/item/bwmeta1.element.desklight-46dd2fbc-15ee-4d75-8164-adfe4db3d43e/