TY JOUR TI Bifurcation approach in the study of the history of state and law: understanding and methodological construction KW synergetics KW sociosynergetics KW social and humanitarian sciences KW legal sciences KW methodology of studying state-legal phenomena and institutions KW methodological approaches KW bifurcation approach JO Legal Science and Practice: Journal of Nizhny Novgorod Academy of the Ministry of Internal Affairs of Russia AU Biyushkina, N.I. AU Kodan, S.V. PY 2021 IS 2021 PB Nizhny Novgorod Academy of the Ministry of the Interior of Russia