TY - GEN AU - O'Regan, Donal TI - Existence theory for nonlinear ordinary differential equations SN - 0792345118 U1 - 515.352 PY - 1997/// CY - Dordrecht PB - Kluwer Academic Pub. KW - ANALYSIS KW - DIFFERENTIAL EQUATIONS KW - MATHEMATICS KW - ORDINARY DIFFERENTIAL EQUATIONS ER -