KS Chou, D Geng - Nonlinear Analysis: Theory, Methods & Applications, 1996 - Elsevier
~) Pergamon Page 1 ~) Pergamon Nonlinear Analysis, Theory, Methods & Applications, Vol.
26, No. 12. pp. 1965-1984, 1996 Copyright © 1996 Elsevier Science Ltd Printed in Great …