Perez-Sanz, F.J.; Sarge, S.M.; van der Veen, A.; Culleton, L.; Beaumont, O.; Haloua, F. (2019) First experimental comparison of calorific value measurements of real biogas with reference and field calorimeters subjected to different standard methods. International Journal of Thermal Sciences, 135. pp. 72-82. ISSN 12900729