?url_ver=Z39.88-2004&rft_id=10.1016%2Fj.proeng.2012.10.069&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Abook&rft.aulast=Pal&rft.au=Pal%2C+A.J.&rft.aufirst=A.J.&rft.issn=18777058&rft.title=Generating+chromatic+number+of+a+graph+using+ant+colony+optimization+and+comparing+the+performance+with+simulated+annealing&rft.date=2012&rft.genre=proceeding