Back to matchesWe found a matchYour institution may have access to this item. Find your institution then sign in to continue.TitleAbout the Domain of Existence of Real Third-Order Subharmonics of the Duffing Equation.AuthorsPlato, G.PublicationZAMM -- Journal of Applied Mathematics & Mechanics / Zeitschrift für Angewandte Mathematik und Mechanik, 1977, Vol 57, Issue 3, p187ISSN0044-2267Publication typeArticleDOI10.1002/zamm.19770570308