TY  - JOUR
AU  - N. V. Talantova
AU  - A. P. Shirokov
TI  - Three-step groups of linear fractional substitutions of a dual variable as affine collineations
JO  - Trudy Geometricheskogo Seminara
PY  - 1976
SP  - 105
EP  - 113
VL  - 9
UR  - http://geodesic.mathdoc.fr/item/KUTGS_1976_9_a12/
LA  - ru
ID  - KUTGS_1976_9_a12
ER  -