00796nam0-22002531i-450-990001134530403321000113453FED01000113453(Aleph)000113453FED0100011345320000920d1972----km-y0itay50------baengExamples to extremum and variational principles in mechanicsby Besdo D.Wien [etc.]Springer-Verlag1972International Centre for Mechanical Sciences. Courses and Lectures65Besdo,Dieter54466ITUNINARICAUNIMARCBK99000113453040332133-F-261538MA1MA1Examples to extremum and variational principles in mechanics345328UNINAING01