00942nam a2200301 i 450099100107241970753620020507110130.0970308s1968 us ||| | eng b10169702-39ule_instLE00641663ExLDip.to Fisicaita510:53510.30510.44510.46.40530.15QA401Butkov, E.462792Mathematical physics /E. ButkovReading, MA :Addison-Wesley Publ. Co.,1968xi, 735 p. :ill. ;24 cm.Mathematical physics.b1016970221-09-0627-06-02991001072419707536LE006 510:53 BUT12006000156134le006-E0.00-l- 00000.i1020709027-06-02Mathematical physics188433UNISALENTOle00601-01-97ma -engus 01