Shaver, Gaius R, and J. A Laundre. ?Exsertion, Elongation, And Senescence Of Leaves Of Eriophorum Vaginatum And Carex Bigelowii In Northern Alaska?. Global Change Biology 3, no. S1. Global Change Biology (1997): 146-157. doi:10.1111/j.1365-2486.1997.gcb141.x.