Tertulien Ndjountche Rolf Unbehauen Fa-Long Luo A 1.5V VLSI Circuit for the Co-Channel Signal Separation. 202-207 2000 IJCNN (4) http://csdl.computer.org/comp/proceedings/ijcnn/2000/0619/04/06194202abs.htm db/conf/ijcnn/ijcnn2000-4.html#NdjountcheUL00