TY - BOOK AU - Simmons,George Finlay AU - Krantz,Steven G. TI - Differential equations: theory, technique, and practice SN - 9780070616097 U1 - 515.35 PY - 2011/// CY - New Delhi PB - McGraw-Hill KW - Mathematics KW - Differential equations KW - Boundary value problems N1 - Includes bibliographical references and index ER -