%0 Journal Article
%A Robkin, Eugene
%A Valentine, F. A.
%T Parallel Lines Associated with Two Sets
%J Canadian journal of mathematics
%D 1966
%P 811-816
%V 18
%N 1
%U http://geodesic.mathdoc.fr/articles/10.4153/CJM-1966-080-9/
%R 10.4153/CJM-1966-080-9
%F 10_4153_CJM_1966_080_9