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Theory of ordinary differential equations
Earl A. Coddington, Norman Levinson
Bok Engelsk 1984
Regular boundary value problems associated with pairs of ordinary differential expressions
Earl A. Coddington, Hendrik S. V. de Snoo...
Bok Språk ikke angitt 1981
An introduction to ordinary differential equations
Earl A. Coddington
Bok Engelsk 1961
Theory of ordinary differential equations
Earl A. Coddington, Norman Levinson
Bok Engelsk 1955