@article{GDZPPN002285738,
title = {The Riccati Equation: Initial Values and Inequalities.},
journal = {Mathematische Annalen},
volume = {133},
year = {1957},
pages = {235-250},
zbl = {0102.07201},
url = {http://dml.mathdoc.fr/item/GDZPPN002285738}
}
Redheffer, R.M. The Riccati Equation: Initial Values and Inequalities.. Mathematische Annalen, Tome 133 (1957) pp. 235-250. http://gdmltest.u-ga.fr/item/GDZPPN002285738/