Problems of unconventional hydrocarbons sources on the example of the domanikites of the Timan-Pechora oil and gas provinceV.B. Rostovshchikov, I.V. Kurta, Ya.S. Sbitneva and I. V. KolokolovaE3S Web Conf., 266 (2021) 01004DOI: https://doi.org/10.1051/e3sconf/202126601004