00797nam0-22002651i-450-99000114134040332120140206144624.0000114134FED01000114134(Aleph)000114134FED0100011413420001205d1948----km-y0itay50------baengStudies and essays presented to R. Courant on his 60th birthday, Jan. 8, 1948New YorkInterscience Publishers1948470 p.25 cm510.4Courant,Richard331066ITUNINARICAUNIMARCBK990001141340403321203-C-5575MA1MA1Studies and essays presented to R. Courant on his 60th birthday, Jan. 8, 1948344139UNINA