%0 Journal Article %A R. Lehman %T On primitive recursive real numbers %J Fundamenta Mathematicae %D 1960 %P 105-118 %V 49 %N 2 %I mathdoc %U http://geodesic.mathdoc.fr/articles/10.4064/fm-49-2-105-118/ %R 10.4064/fm-49-2-105-118 %G en %F 10_4064_fm_49_2_105_118