@InProceedings{Cristescu2006network, author= {Razvan Cristescu and Baltasar Beferull-Lozano and Martin Vetterli and Roger Wattenhofer}, title= {{Network correlated data gathering with explicit communication: NP-completeness and algorithms}}, booktitle= {{IEEE/ACM Transactions on Networking (TON), Volume 14, Issue 1}}, month= {February}, year= {2006}, }