00427nam a2200145Ia 4500008004100000020002500041040002600066082001500092100004500107245006600152250001100218260003100229003000400260005001700264241206s9999||||xx |||||||||||||| ||und||  a9780471644545c135.8  bengcSSK Libraryerda  a515.35/BOY  a William E. Boyce & Richard C. Diprima - 0aElementary Differential Equations And Boundary Value Problems  a8th ed  b John Wiley & Sonsc©2005OSt20241206223253.0