For citations:

Ratnikov I.B., Shulga R.S., Romanov E.A., Bastrikov S.N. Analysis of porosity parameter with involvement of elements of regional petrophysics (electrofacies) and clayness type. Mining Science and Technology (Russia). 2016;(2):50-65. https://doi.org/10.17073/2500-0632-2016-2-50-65