@article{ref1,
title="Light therapy of depression",
journal="Lakartidningen",
year="1991",
author="Zettergren, M. and Wiberg, B. and Bjorksten, Karin S. and Nordlund, A. L. and Friberg, Y. and Freund-Levi, Y. and Beck-Friis, J. and Thalén, B. E. and Kjellman, B. and Wetterberg, L.",
volume="88",
number="5",
pages="310-312",
abstract="<p>[Abstract unavailable]</p> <p>Language: sv</p>",
language="sv",
issn="0023-7205",
doi="",
url="http://dx.doi.org/"
}