@ARTICLE{satvir2013:4,
     Title={Analysis of different ranges for wireless sensor node localization using PSO and BBO and its variants},
     Author={Singh, Satvir and Shivangna and Shelja, Tayal},
     Journal={International Journal of Computer Applications},
     Volume={63},
     Number={22},
     Pages={31--37},
     Publisher={Foundation of Computer Science},
     Year={2013}
}