Bokov, P., Donceva, M. Central Balkanides - a teritory prospective for petroleum exploration activities,
, 1994, p. 25-27.
Bokov, P., Donceva, M. .
Central Balkanides - a teritory prospective for petroleum exploration activities.
София: , 1994, p. 25-27.
Bokov, P., Donceva, M. (1994)
Central Balkanides - a teritory prospective for petroleum exploration activities,
София: , p. 25-27
Bokov, P., & Donceva, M.
(1994).
Central Balkanides - a teritory prospective for petroleum exploration activities. Геология и минерални ресурси. София: 1 (6), p. 25-27.
