na INLIS000000000002529 Ind 0010-1118002529 Borrelyngen on Bornholm, Denmark : a heath on rocky ground exploitation and vegetation from antiquity to the present MIKKELSEN, Vald M. Vald M. Mikkelsen Copenhagen Royal Danish Academy of Sciences and Letters 1991 51 p. : ill. ; 26 cm.-- 51 p. : ill. ; 26 cm.-- Bibl. p. 51 581.9(489) FLORA DENMARK 1559/MS/91