@article{1102977536,
author = {Schwarz, Binyamin},
title = {Totally positive differential systems.},
journal = {Pacific J. Math.},
volume = {35},
number = {3},
year = {1970},
pages = { 203-229},
language = {en},
url = {http://dml.mathdoc.fr/item/1102977536}
}
Schwarz, Binyamin. Totally positive differential systems.. Pacific J. Math., Tome 35 (1970) no. 3, pp. 203-229. http://gdmltest.u-ga.fr/item/1102977536/