@article{article73013ead,
title   = {One-dimensional trapped atoms: critical coupling parameter and critical number of particles},
author = {Sousa, A. G. and Silva, Alberico Borges Ferreira da and Bagnato, Vanderlei Salvador},
year = {2010},
doi = {10.1007/s10910-010-9701-7},
journal   = {Journal of Mathematical Chemistry}
}