Черниш, Є.Ю. and Пляцук, Л.Д. 2015. Development of biotechnology of hydrogen sulfid removal from biogas using immobilization material based on phosphogypsum. Eastern-European Journal of Enterprise Technologies. 2, 6(74) (Apr. 2015), 28–34. DOI:https://doi.org/10.15587/1729-4061.2015.39044.