Babuska, Ivo. Numerical processes in differential equations / Ivo Babuska, Milan Prager & Emil Vitasek ; [transl. by Milada Boruvkova]. - Prague : SNTL-Interscience Publishers, 1966. - x, 351 p. : ill. ; 24 cm. Subjects--Topical Terms: Differential equations--Numerical solutions.