TY  - JOUR
AU  - V. M. Buchstaber
AU  - A. P. Veselov
TI  - Conway topograph, $\mathrm{PGL}_2(\pmb{\mathbb Z})$-dynamics and two-valued groups
JO  - Trudy Matematicheskogo Instituta imeni V.A. Steklova
PY  - 2019
SP  - 387
EP  - 430
VL  - 74
IS  - 3
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/item/RM_2019_74_3_a1/
LA  - en
ID  - RM_2019_74_3_a1
ER  -