7R.A. Kay, J.K. Stephens, Porous Friction Courses and Roadway Surface Noise, Federal Highway Administration, Implementation Package, 1975.
8Maupin Jr, G W, virginia's experience with open-graded surface mix, Transportation Research Record, 1976, 595: 48-51.
9http://www.epa.gov/oecaagct/lcwa.html#Summary.
10Pindado, M. A.; Aguado, A.; and Josa, A., Fatigue Behavior of Polymer-Modified Porous Concretes, Cement and Concrete Research, 1999, 29(7): 1077-1083.