TY - BOOK T1 - Dirichlet's principle, conformal mapping, and minimal surfaces. A1 - Courant, Richard, 1888-1972 LA - English PP - New York PB - Inter-Science Publishing YR - 1950 UL - https://ds.mainlib.upd.edu.ph/Record/UP-99796217607773169 OP - 330 CN - QA646 C6 ER -