TY  - JOUR
AU  - Ljubić, Dragoslav
TI  - Bireflectionality in Absolute Geometry
JO  - Canadian mathematical bulletin
PY  - 1989
SP  - 54
EP  - 63
VL  - 32
IS  - 1
UR  - http://geodesic.mathdoc.fr/articles/10.4153/CMB-1989-008-6/
DO  - 10.4153/CMB-1989-008-6
ID  - 10_4153_CMB_1989_008_6
ER  -