TY - RPRT TI - Peculiarities of beta functions in sigma models AU - Gamayun, Oleksandr AU - Losev, Andrei AU - Shifman, Mikhail PY - 2023 DO - 10.1007/jhep10(2023)097 UR - https://www.osti.gov/biblio/2234293 ID - 2234293 ER -