Bilski, Marcin, Marta Mielczarek, Przemysław Górnaś, Mieczysław Słowik, and Patrycja Wojciechowska. 2022. “The Effect of the Mixing Method of the Addition of Gilsonite Natural Bitumen on Asphalt Mixture Properties”. Roads and Bridges - Drogi I Mosty 21 (3):239-51. https://doi.org/10.7409/rabdim.022.014.