\Bibitem{Erd64} \by P.~Erd{\H o}s \paper On a problem of G.~Golomb \jour Matematika \yr 1964 \vol 8 \issue 6 \pages 157--164 \mathnet{http://mi.mathnet.ru/mat340} \mathscinet{https://mathscinet.ams.org/mathscinet-getitem?mr=0123539} \transl \jour J. Austral. Math. Soc. \yr 1961 \vol 2 \pages 1--8