00286nam a2200109 a 450000500170000000800410001704100080005810000190006624500430008526400370012830000110016520260716124438.0260701s1971    ii            000 0 eng d  aeng1 aYosida, Kosaku10aFunctional analysis /cYosida, Kosaku. 1aNew York :bSpringer Ver,c1971.  a361 p.