%0 Journal Article %A J. Boyte %A E. Lane %T An insertion theorem for real functions %J Fundamenta Mathematicae %D 1975 %P 29-30 %V 87 %N 1 %I mathdoc %U http://geodesic.mathdoc.fr/articles/10.4064/fm-87-1-29-30/ %R 10.4064/fm-87-1-29-30 %G en %F 10_4064_fm_87_1_29_30