@第{zbMATH07543532条，作者＝{Budkin，Alexandr Ivanovich}，标题={单关系群的局部自由子群}，FJournal={Sibirskie{\`E}lektronnye Matematicheskie Izvestiya}，日志={Sib.{\`E}lektron。Mat.Izv.}，ISSN={1813-3304}，体积={18}，数字＝｛2｝，页码={1757--1770}，年份={2021}，语言={英语}，DOI={10.33048/sim.2021.18.135}，关键词={20F05,20E05}，zbMATH={7543532}}