00693nam a2200205Ia 4500003000900000008004100009040001600050080001900066100002000085245012000105260003900225300001200264500002600276650003300302650001900335650001600354942000700370999001500377952009500392IN-BaIIA211028s9999    xx            000 0 eng d  cIIA Library  a517.91:53bHOP  aHopf, L.912768 0aIntroduction to the differential equations of physicscL. Hopf                                                       aNew YorkbDover Publicationsc1948  av,154p.  aDonated by Mrs. Bappu  aDifferential Equations91510  aNASA Thesaurus  aPhysics973  cBK  c7492d7492  00104070aBANbBANcGENd1983-07-14l0o517.91:53/ HOPp8304r2021-11-05w1983-07-14yBK