Search for: [References = "21. Magnuson J.J., Robertson D.M., Benson B.J., Wynne R.H., Livingstone D.M., Arai T., Assel R.A., Barry R.G., Card V., Kuusisto E., Granin N.G., Prowse T.D., Stewart K.M., Vuglinski V.S., 2000, Historical trends in lake and river ice cover in the Northern Hemisphere, Science, 289, s. 1743\-1746."]