TY  - JOUR
AU  - Chen, Yi
TI  - A Characterization of Some Geometries of Chains
JO  - Canadian journal of mathematics
PY  - 1974
SP  - 257
EP  - 272
VL  - 26
IS  - 2
UR  - http://geodesic.mathdoc.fr/articles/10.4153/CJM-1974-027-5/
DO  - 10.4153/CJM-1974-027-5
ID  - 10_4153_CJM_1974_027_5
ER  -