Wittmaack, M. F. (1999). Existence of multiple ordered solutions for a similinear elliptic boundary value problem. Universidad de La Serena.
Chicago Style (17th ed.) CitationWittmaack, Melitta Fiebig. Existence of Multiple Ordered Solutions for a Similinear Elliptic Boundary Value Problem. La Serena: Universidad de La Serena, 1999.
MLA (9th ed.) CitationWittmaack, Melitta Fiebig. Existence of Multiple Ordered Solutions for a Similinear Elliptic Boundary Value Problem. Universidad de La Serena, 1999.
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