%0 Journal Article %A R. Smarzewski %T Chebyshev optimal starting approximation by families with the weak betweenness property %J Applicationes Mathematicae %D 1977 %P 485-495 %V 16 %N 3 %I mathdoc %U http://geodesic.mathdoc.fr/articles/10.4064/am-16-3-485-495/ %R 10.4064/am-16-3-485-495 %G en %F 10_4064_am_16_3_485_495