01073nam2-2200337li-450 99000333640020331620180918155413.0000333640USA01000333640(ALEPH)000333640USA010003336402002009101972-------y0itay0103----baengUSIntermediate problems for eigenvaluestheory and ramificationsAlexander Weinstein and William StengerNew YorkAcademic Press1972XI, 234 p.ill.24 cmMathematics in science and engineering890010003335932001Mathematics in science and engineering89Matematica510WEINSTEIN,Alexander13640STENGER,William13641ITsalbcISBD990003336400203316510 MSE (89)2893/CBS51000111315BKSCIRSIAV69020091020USA010955Intermediate problems for eigenvalues1511904UNISA