Finite-temperature correlations in the trapped Bose-Einstein gas N. M. Bogoliubov, R. K. Bullough, V. S. Kapitonov, C. Malyshev and J. Timonen Europhys. Lett., 55 6 (2001) 755-761 Published online: 01 December 2003 DOI: 10.1209/epl/i2001-00345-2