Priscu, John C.Christner, Brent C.Foreman, Christine M.Royston-Bishop, George2017-07-132017-07-132006Priscu JC, Christner BC, Foreman CM, Royston-Bishop G, "Biological materials in ice cores," In S. A. Elias (ed.), Encyclopedia of Quaternary Science, Volume 2, Elsevier, U.K. pp. 1156-1166https://scholarworks.montana.edu/handle/1/13298Article