Sikora, A., A. Detman, A. Chojnacka, i D. Mielecki. Selected Issues of Anaerobic Digestion Based on the Studies on Hydrogen- and Methane Yielding Bioreactors. Eco-Energetics: Technologies, Environment, Law and Economy, T. 2, June 2019, s. 129-34, doi:10.24426/eco-energetics.v2i2.118.