00701nam0-22002291i-450-990001133970403321000113397FED01000113397(Aleph)000113397FED01000113397--------d--------km-y0itay50------baeng<<An >>introduction to nonlinear boundary value problemsby BernfeldLakshmikanthamNew York [etc.]Academic Press1974Bernfeld,Stephen R.40764ITUNINARICAUNIMARCBK990001133970403321C-26-(10914882MA1MA1Introduction to nonlinear boundary value problems345292UNINA