Stefan Harmeling Independent component analysis and beyond University of Potsdam, Germany 2005 base-search.net (ftubpotsdam:oai:kobv.de-opus4-uni-potsdam:165) https://publishup.uni-potsdam.de/frontdoor/index/index/docId/165 https://nbn-resolving.org/urn:nbn:de:kobv:517-0001540 https://publishup.uni-potsdam.de/files/165/HARMELIN.PDF https://www.base-search.net/Record/c2eea7d0361c16a5c52fc76d35253b12ec24d03d5cf8b152419ba9b04242783c