@book{ Solr-101215, title = {Topologische Gruppen. 2.}, series = {Topologische Gruppen ;}, author = {Pontryagin, Leon S.}, editor = {Guenther, P.}, editor = {Pontryagin, Leon S.}, address = {Leipzig}, publisher = {Teubner}, year = {1958}, note = {englisch}, }