Address for correspondence:

Bulgaria Sofia 1113 Institute of Geography - BAS Acad. Georgi Bonchev str., bl. 3 Peter Stafanov Stefanov Tel.: (+359 2) 979 33 75 Fax: (+359 2) 870 02 04 E-mail: sh2005@abv.bg

For additional information:

“Shumensko Plateau” Bulgarian Natural Park Directorate: tel.: (+35954)800765, 800466 e-mail: sh-plato@infotel.bg Institute of Geography of Bulgarian Academy of Sciences: tel.: (+3592) 979 33 75 e-mail: sh2005@abv.bg