Simple Performance Tester (SPT), “What Is It? How Can I Use It?” http://www.superpave.psu.edu/downloads/pdf
 G. A. Huber, J. F. Corte and P. Laglois, “The Effect of Mix Design Technology on he Rutting Characteristics of Asphalt Pavements,” Proceeding of the International Conference on Asphalt Pavements, Denmark, August 2002, pp. 17-22.
 State Committee of the USSR Council of Ministers for Construction, “Instructions CH 484-76. Engineering Survey in the Mines of Mountains Intended to Placement of the National Economy,” Moscow, 1977, p. 24.