RT Journal Article SR Electronic(1) A1 Angelova, D.YR 1999 T1 Natural hazard and technogenic changes in the Zlatitza-pirdop graben system, Bulgaria JF , VO OP SP cp-35-00121 DO https://doi.org/10.3997/2214-4609.201406488 PB European Association of Geoscientists & Engineers, SN 2214-4609, AB , UL https://www.earthdoc.org/content/papers/10.3997/2214-4609.201406488