Petkevičius, Kazys, and Julius Christauskas. “Asphalt Concrete Quality Assurance During Production”. The Baltic Journal of Road and Bridge Engineering, vol. 1, no. 3, Sept. 2006, pp. 151-6, https://bjrbe-journals.rtu.lv/bjrbe/article/view/1822-427X.2006.3.151%E2%80%93156.