@article{3b9caabeccb64fc48f98fa2ab24c50fa,
title = "Sleep Fragmentation in Mentally Retarded People Decreases with Increasing Daylength in Spring",
keywords = "annual rhythmics, daylength, mental retardation, seasonality, sleep, annual rhythmics, daylength, mental retardation, seasonality, sleep, annual rhythmics, daylength, mental retardation, seasonality, sleep",
author = "N. Lindblom and H. Heiskala and M. Kaski and L. Leinonen and Maija-Liisa Laakso",
year = "2002",
language = "English",
volume = "19",
pages = "441--459",
journal = "Chronobiology International",
publisher = "Informa Healthcare",
number = "2",
}