@ARTICLE{design2013,
     Title={Design of Digital IIR Filters: A Comparison},
     Author={Balraj Singh, J.S. Dhillon and Y.S. Brar},
     Journal={Journal of Electrical,Electronics and Telecommunication Engineering},
     Volume={44},
     Number={1},
     Pages={1108-1121},
     Publisher={},
     Year={2013}
}