Climatic history of the northeastern United States during the past 3000 years oleh J. R. Marlon, N. Pederson, C. Nolan, S. Goring, B. Shuman, A. Robertson, R. Booth, P. J. Bartlein, M. A. Berke, M. Clifford, E. Cook, A. Dieffenbacher-Krall, M. C. Dietze, A. Hessl, J. B. Hubeny, S. T. Jackson, S. T. Jackson, J. Marsicek, J. McLachlan, C. J. Mock, D. J. P. Moore, J. Nichols, D. Peteet, K. Schaefer, V. Trouet, C. Umbanhowar, J. W. Williams, Z. Yu