Čygas, D. “Main Problems of Manufacturing Asphalt Concrete Mixtures in Lithuania/Asfaltbetonio mišinių Gamybos Svarbiausios Problemos Lietuvoje”. Journal of Civil Engineering and Management, vol. 6, no. 1, Feb. 2000, pp. 39-45, doi:10.3846/13921525.2000.10531562.