Biohumus “Sis” for the ecologically pure agricultural productionTatevik A. Jhangiryan, Albert O. Markosyan, Hovhannes K. Yeritsyan, Julia Valeeva, Margarit T. Petrosyan and Gulnara ValeevaBIO Web Conf., 52 (2022) 00068DOI: https://doi.org/10.1051/bioconf/20225200068