00344nam 2212835 450000100060000000300230000600500090002900800410003808200120007910000140009126000250010524500940013012835StarLibrary Marc Built20180503201711 ||||| |||||||||||amh  a515.353 aDan Henry buk: cambridge c2005 aPerturabation Of The Boundary In Boundary Value Problems Of Partial Differential Equation