@conference {SSB04, title = {Signaling compression}, booktitle = {Fourth Conference of PhD Students in Computer Science (CSCS 2004)}, year = {2004}, month = {jul}, pages = {103}, author = {Istv{\'a}n Siket and G. Sey and V. Bilicki} } @article {FBS03, title = {SIP compression}, journal = {Periodica Polytechnica-Electrical Engineering}, volume = {47}, year = {2003}, pages = {1-2}, author = {M. Fidrich and V. Bilicki and Z. S{\'o}gor and G. Sey} }