@inbook{inbook20cf8413,
title   = {Two sleep patterns in night workers},
author = {Moreno, Claudia Roberta de Castro and Rotemberg, L and Louzada, F M and Menna Barreto, Luiz Silveira},
year = {2000},
publisher = {Peter Lang},
journal   = {Shiftwork in the 21(st) Century. Challenges for research and practice}
}