On neutral subgroups of topological groups
Tài liệu tham khảo
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Montgomery, D., Zippin, L.: Topological transformation groups. Huntington: Krieger 1974
Poncet, J.: Une classe d'espaces homogènes possédant une mesure invariante. C.R. Acad. Sci. Paris238, 553–554 (1954)
Roelcke, W., Dierolf, S.: Uniform structures on topological groups and their quotients. New York: McGraw-Hill 1981