MathSciNet bibliographic data MR2306791 (2008c:90092) 90C47 (47H10 54H25) Chen, Chi-Ming; Chang, Tong-Huei Some results for the family ${\rm KKM}(X,Y)$${\rm KKM}(X,Y)$ and the $\Phi$$\Phi$-mapping. J. Math. Anal. Appl. 329 (2007), no. 1, 92–101. Article

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