Guseynov, S. E., Aleksejevs, R., & Aleksejeva, J. V. (2019). ON A 3D INITIAL-BOUNDARY VALUE PROBLEM FOR DETERMINING THE DYNAMICS OF IMPURITIES CONCENTRATION IN A HORIZONTAL LAYERED FINE-PORE MEDIUM. ENVIRONMENT. TECHNOLOGIES. RESOURCES. Proceedings of the International Scientific and Practical Conference, 3, 60-69. https://doi.org/10.17770/etr2019vol3.4172