Estevez, Maria Magdalena, i in. „Co-Digestion of Waste from the Salmon Aquaculture Sector With Regional Sewage Sludge: Effects on Methane Yield and Digestate Nutrient Content”. Eco-Energetics: Technologies, Environment, Law and Economy, t. 2, czerwiec 2019, s. 29-34, doi:10.24426/eco-energetics.v2i2.107.