@article{Kleinert2012,
author = {Kleinert, Hagen and Narzikulov, Z. and Rakhimov, Abdulla},
year = {2012},
language = {eng},
copyright = {http://www.fu-berlin.de/sites/refubium/rechtliches/Nutzungsbedingungen},
title = {Quantum phase transitions in optical lattices beyond the Bogoliubov
approximation},
url = "http://dx.doi.org/10.17169/refubium-21139",
}