Deliveris, A.V., I.E. Zevgolis, and N.C. Koukouzas. 2016. “NUMERICAL MODELLING OF SLOPE STABILITY IN OPEN PIT LIGNITE MINES: A COMPARATIVE STUDY”.
Bulletin of the Geological Society of Greece
50 (2):671-80. https://doi.org/10.12681/bgsg.11773.