00326nam a2200133Ia 4500082002100000100001900021245004300040250000900083260003400092300002100126490003500147500000500182700000500187  a515.64bAr791.CV  aArthurs, A. M.  aComplementary variational principlesb  a2nd.  aOxfordbClarendon Pressc1980  avii, 154p. Index  aOxford Mathematical monographs  a  a