@article{article35cbd517,
title   = {Extended Hartree-Fock-Bogoliubov theoy for degenerate Bose systems},
author = {Tommasini, Paolo and Passos, Emerson Jose Veloso de and Pires, M O C and Piza, Antonio Fernando Ribeiro de Toledo},
year = {2005},
journal   = {Journal of Physics Condensed Matter}
}