@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}
}
