MathSciNet bibliographic data MR970644 11A07 (11D68) Sun, Qi; Cao, Zhen Fu On the equation $\sum^s_{j=1}1/x_j+1/ x_1\cdots x_s=n$$\sum^s_{j=1}1/x_j+1/ x_1\cdots x_s=n$ and the number of solutions of Znám's problem. (Chinese) Northeast. Math. J. 4 (1988), no. 1, 43–48. Links to the journal or article are not yet available

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