00826cam 22002411 450 2003487http://id.bnportugal.gov.pt/bib/porbase/200348720030424015300.00-7167-1045-5Brochado73272PTBN0018027619901001d1979 k y0pora0103 baengUSComputers and infractability<a >guide to the theory of NP-completeness2nd printS. FranciscoW. H. Freemancop. 1979340 p.GareyMichael R.1543809JohnsonDavid S.0701543810PTBNRPCICC.P 304coopESTSMmq276847bccoopESTSM3040MT-68-131coopUAVSDmq276845bccoopUAVSD684880I. 15.36coopUCMAmq276846bccoopUCMA159540FE E. 230coopUNLFEmq276844bccoopUNLFE0