WIJMSTRA , T.A. and GROENHART, M.C. 1983. RECORD OF 700.000 YEARS VEGETATIONAL HISTORY IN EASTERN MACEDONIA (Greece)* . Revista de la Academia Colombiana de Ciencias Exactas, Físicas y Naturales. 15, 58 (Dec. 1983), 87–88. DOI:https://doi.org/10.18257/raccefyn.15(58).1983.3784.