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Simmons, George F.
Differential equations, with applications and historical notes / George Finlay Simmons, with a new chapter on numerical methods by John S. Robertson.
— 2nd ed. — New York : McGraw-Hill, c1991. xxi, 629 p. : il. ; 24 cm. — (International series in pure and applied mathematics)
Incluye referencias bibliográficas e índice.
ISBN 0070575401
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