@article{article36cc7f56,
title   = {Measurement of Na'5S IND.1/2' hyperfine splitting by ionization using a sample of cold atoms},
author = {Marcassa, Luís Gustavo and Muniz, Sérgio Ricardo and Telles, G D and Zílio, Sérgio Carlos and Bagnato, Vanderlei Salvador},
year = {1998},
doi = {10.1016/s0030-4018(98)00339-3},
journal   = {Opics Communications}
}