Asymptotic Solution of Systems of Linear Ordinary Differential Equations with Discontinuous Coefficients
Clive ChesterJoseph Keller
Indiana University Mathematics Journal
1961
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10.1512/iumj.1961.10.10037
10.1512/iumj.1961.10.10037
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Indiana Univ. Math. J. 10 (1961) 557 - 567
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