%0 Journal Article
%A Cheng, Zhiyun
%T The Chord Index, its Definitions, Applications, and Generalizations
%J Canadian journal of mathematics
%D 2021
%P 597-621
%V 73
%N 3
%U http://geodesic.mathdoc.fr/articles/10.4153/S0008414X20000061/
%R 10.4153/S0008414X20000061
%F 10_4153_S0008414X20000061