TY - JOUR AU - M. D. Kovalev TI - On the geometric definition of the hinge mechanism, Kempe's theorem and overripe mathematics JO - Sibirskij žurnal industrialʹnoj matematiki PY - 2022 SP - 41 EP - 54 VL - 25 IS - 3 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/SJIM_2022_25_3_a4/ LA - ru ID - SJIM_2022_25_3_a4 ER -