Gilbarg, David <br/><br/>
Elliptic partial differential equations of second order 
David Gilbarg and Neil S Trudinger 
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 - Springer-Verlag, Berlin  1977 
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<br/><br/><label>Subjects--Topical Terms: </label><br/>Differential equations-- Analysis-- Mathematics
<br/><br/><label>Dewey Class. No.: </label>R  515.35  GIL-E