00628nam a2200193Ia 4500003000900000008004100009040001600050080001600066100001600082245013900098260004800237300001300285490004000298650001900338650003500357700001300392700001600405700001300421IN-BaIIA211028s9999    xx            000 0 eng d  cIIA Library  a517.95bBER  aBergman, S. 0aContributions to the theory of partial differential equationsc S. Bergman…[et al.]                                                   aPrincetonbPrinceton University Pressc1954  av, 257p.  aAnnals of Mathematics Studies no.33  aNASA Thesaurus  aPartial Differential Equations  aBers, L.  aBochner, S.  aJohn, F.