Courant, R <br/><br/>
Methods of mathematical physics, Vol.1: Partial differential equations 
R Courant and D Hilbert 
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 - Interscience Publishers., New York  1965 
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 - .
<br/><br/><label>Subjects--Topical Terms: </label><br/>Mathematical physics
<br/><br/><label>Dewey Class. No.: </label>530.15  COU-M.1