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Operations Research, Vol. 9, No. 2 (Mar. - Apr., 1961), 145-162

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Page 1: Operations Research, Vol. 9, No. 2 (Mar. - Apr., 1961), 145-162
Page 2: Operations Research, Vol. 9, No. 2 (Mar. - Apr., 1961), 145-162
Page 3: Operations Research, Vol. 9, No. 2 (Mar. - Apr., 1961), 145-162
Page 4: Operations Research, Vol. 9, No. 2 (Mar. - Apr., 1961), 145-162
Page 5: Operations Research, Vol. 9, No. 2 (Mar. - Apr., 1961), 145-162
Page 6: Operations Research, Vol. 9, No. 2 (Mar. - Apr., 1961), 145-162
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