%0 Journal Article %A Bell, Harold %A Ungar, Gerald S. %T From Path Lifting and Unique Arc Lifting to Unique Path Lifting %J Canadian journal of mathematics %D 1973 %P 204-212 %V 25 %N 1 %U http://geodesic.mathdoc.fr/articles/10.4153/CJM-1973-018-0/ %R 10.4153/CJM-1973-018-0 %F 10_4153_CJM_1973_018_0