@techreport{BasianaMartinssonViketal.2004, author = {Ariadna Farres Basiana and Hanna Martinsson and Brage Ofstad Vik and Sergiy Pereverzyev and Martin Purrucker and Klaus Erich Schmitz Abe and David Stiel and Uldis Strautins}, title = {Frequency Filtering in Telecommunications}, institution = {Fachbereich Mathematik}, year = {2004}, url = {http://nbn-resolving.de/urn/resolver.pl?urn:nbn:de:hbz:386-kluedo-16259}, }