Economic and energy efficiency of the solid biofuels produced from digested pulpWojciech Czekała, Sylwia Bartnikowska, Aleksandra Lewicka, Artur Bugała, Zbyszek Zbytek and Andrzej LewickiMATEC Web of Conferences, 60 (2016) 04005DOI: https://doi.org/10.1051/matecconf/20166004005