TY  - JOUR
AU  - M. V. Girshovich
TI  - On conditions for effecting second-degree constructions in the Lobatchevsky plane using only a ruler
JO  - Izvestiâ vysših učebnyh zavedenij. Matematika
PY  - 1963
SP  - 30
EP  - 38
IS  - 5
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/item/IVM_1963_5_a4/
LA  - ru
ID  - IVM_1963_5_a4
ER  -