@article{article39b12c7c,
title   = {Difficulty falling asleep and daylight exposure: differences between brazilian and swedish workers},
author = {Marqueze, EC and Vasconcelos, S and Garefelt, J and Fischer, Frida Marina and Skene, DJ and Moreno, Claudia Roberta de Castro and Lowden, Arne},
year = {2013},
booktitle   = {International Symposium on Shiftwork and Working Time}
}