@ARTICLE{
author={Stojanovic VS,Micic Aca D,Nikolic SV},
year={2003},
title={Design of recursive digital filters without analog conversion},
journal={TELSIKS 2003: 6TH INTERNATIONAL CONFERENCE ON TELECOMMUNICATIONS IN MODERN SATELLITE, CABLE AND BROADCASTING SERVICE, VOLS 1 AND 2, PROCEEDINGS OF PAPERS},
volume={},
number={},
pages={305-312},
document_type={Proceedings Paper},
} 

@ARTICLE{
author={Nikolic SV,Stojanavic VS},
year={2001},
title={Design of 2-D IIR digital filters with approximatively flat group delay characteristic},
journal={TELSIKS 2001, VOL 1 & 2, PROCEEDINGS},
volume={},
number={},
pages={807-810},
document_type={Proceedings Paper},
}