Relevant Biogas Substrate - Maize Silage vs Slaughterhouse Waste. - Anna Smurzynska; Jacek Dach; Kamil Kozlowski; Jakub Mazurkiewicz; Ewa Wozniak; Piotr Boniecki; Karol Kupryaniuk; Damian Janczak; Michal Brzoski (HAICTA, 2017)