TY - BOOK AU - Ambrosetti,A.,et al (eds) ED - Chang, K-C ED - Ekeland. I TI - Proceedings of the second school on nonliner functional analysis & applications to differential equations, ICTP, Trieste, Italy, 21st April - 9th May,1997 SN - 9789810234706 U1 - 6.01+6.03+6.08+12.05 PY - 1998/// CY - Singapore PB - World Scientific ER -