Nasirov R.N., Baimukhasheva G.K., и Solodovnikov S.P. «SEPARATE DETERMINATION OF THE AMOUNT OF OIL EXTRACTED BY ONE WELL FROM TWO LAYERS». Academic Scientific Journal of Chemistry, no. 5 (октябрь 5, 2019): 108–112. просмотрено декабрь 5, 2025. http://89.250.84.46/chemistry-technology/article/view/1499.