@ARTICLE{investigation2015,
     Title={Investigation of DWDM system using bidirectional optical add/ drop multiplexer (B-OADM) including the fiber non linearity effect},
     Author={Tarandeep Singh, Harmanjot Singh, Rakesh Goyal},
     Journal={Optoelectronics And Advanced Materials-Rapid Communications},
     Volume={9},
     Number={0},
     Pages={601-607},
     Publisher={},
     Year={2015}
}