Harrison, S. P. Research Group Paleo-Climatology, Dr. S. P. Harrison, Max Planck Institute for Biogeochemistry, Max Planck Society;
http://dx.doi.org/10.1175/1520-0442(1998)011%3C2721:IOSGVD%3E2.0.CO;2 (Verlagsversion)
Harrison, S. P., Jolly, D., Laarif, F., Abe-Ouchi, A., Dong, B., Herterich, K., et al. (1998). Intercomparison of simulated global vegetation distributions in response to 6 kyr BP orbital forcing. Journal of Climate, 11(11), 2721-2742. doi:10.1175/1520-0442(1998)011%3C2721:IOSGVD%3E2.0.CO;2.