@article{03957657,
title = {k-component disconjugacy for systems of ordinary differential equations.},
journal = {International Journal of Mathematics and Mathematical Sciences},
volume = {9},
year = {1986},
pages = {373-380},
doi = {10.1155/S0161171286000467},
zbl = {0595.34012},
language = {en},
url = {http://dml.mathdoc.fr/item/03957657}
}
Henderson, Johnny. k-component disconjugacy for systems of ordinary differential equations.. International Journal of Mathematics and Mathematical Sciences, Tome 9 (1986) pp. 373-380. doi : 10.1155/S0161171286000467. http://gdmltest.u-ga.fr/item/03957657/