TY - BOOK AU - Fraga,S.,et al ED - Fraga, E.S ED - Garcia de la Vega, J.M TI - Schrodinger & riccati equations T2 - Lecture notes in chemistry 70 SN - 9783540651055 U1 - 10.04+13.04 PY - 1999/// CY - Berlin PB - Springer ER -