Doncheva, M. Lithofacies significance to the hydrocarbon potential of the lower-middle jurassic sediments. София: 1999 p. 27-30,.
Doncheva, M. Lithofacies significance to the hydrocarbon potential of the lower-middle jurassic sediments. София: 1999 p. 27-30,.
Doncheva, M. (1999) Lithofacies significance to the hydrocarbon potential of the lower-middle jurassic sediments, София: p. 27-30,.
Doncheva, M. (1999). Lithofacies significance to the hydrocarbon potential of the lower-middle jurassic sediments. (Northeastern Bulgaria and Northern Black sea shelf). София: p. 27-30.
Doncheva M. Lithofacies significance to the hydrocarbon potential of the lower-middle jurassic sediments: (Northeastern Bulgaria and Northern Black sea shelf). София: 1999. p. p. 27-30.
