%0 Journal Article %A Victor L. Shapiro %T One-sided conditions for quasilinear Jacobi differential equations %J Colloquium Mathematicum %D 1990 %P 261-273 %V 60 %N 1 %I mathdoc %U http://geodesic.mathdoc.fr/articles/10.4064/cm-60-61-1-261-273/ %R 10.4064/cm-60-61-1-261-273 %G en %F 10_4064_cm_60_61_1_261_273