%0 Journal Article %A Vo-Thanh Liem %T Homotopy characterization of weakly flat knots %J Fundamenta Mathematicae %D 1979 %P 61-72 %V 102 %N 1 %I mathdoc %U http://geodesic.mathdoc.fr/articles/10.4064/fm-102-1-61-72/ %R 10.4064/fm-102-1-61-72 %G en %F 10_4064_fm_102_1_61_72