Wong, Pui-Kei Integral inequalities of Wirtinger-type and fourth-order elliptic differential inequalities. (English) Zbl 0228.35037 Pac. J. Math. 40, 739-751 (1972). Page: −5 −4 −3 −2 −1 ±0 +1 +2 +3 +4 +5 Show Scanned Page Cited in 2 Documents MSC: 35R45 Partial differential inequalities and systems of partial differential inequalities PDFBibTeX XMLCite \textit{P.-K. Wong}, Pac. J. Math. 40, 739--751 (1972; Zbl 0228.35037) Full Text: DOI