PDF(2194 KB)
ON k-SUBSETS OF A SET OF n POINTS IN THE PLANE
Yang Yan-ling
Acta Mathematicae Applicatae Sinica ›› 1987, Vol. 10 ›› Issue (1) : 55-57.
PDF(2194 KB)
PDF(2194 KB)
ON k-SUBSETS OF A SET OF n POINTS IN THE PLANE
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