TY  - JOUR
AU  - Moran, Siegfried
TI  - Pre-Tits Systems
JO  - Canadian mathematical bulletin
PY  - 1986
SP  - 486
EP  - 494
VL  - 29
IS  - 4
UR  - http://geodesic.mathdoc.fr/articles/10.4153/CMB-1986-077-4/
DO  - 10.4153/CMB-1986-077-4
ID  - 10_4153_CMB_1986_077_4
ER  -