@ARTICLE{a2013,
     Title={A hybrid Differential Evaluation Method for the Design of IIR Digital Filter},
     Author={Balraj Singh, J.S. Dhillon and Y.S. Brar},
     Journal={ACEEE International Journal on Signal and Image Processing},
     Volume={4},
     Number={1},
     Pages={1-10},
     Publisher={},
     Year={2013}
}