00933nam0-22002771i-450-99000113790040332120101123111005.0000113790FED01000113790(Aleph)000113790FED0100011379020001205d1972----km-y0itay50------baengUSa---a---001yy<<A >>method for studying model hamiltoniansa minimax principle for problems in statistical physicsby N.N. Bogolyubov, jr.translated and edited by P.J. ShepherdOxford [etc.]Pergamon pressc1972International series of monographs in natural philosophy43Bogoljubov,N. N.<1940- >323568ITUNINARICAUNIMARCBK99000113790040332129-G-38-X17763MA1MA1Method for studying model hamiltonians344309UNINA