1. • Button J.W. Estakhri C. and Wimsatt A. (2007) A Synthesis of Warm-Mix Asphalt Report No. FHWA/TX-07/0-5597-1 Texas Transportation Institute College Station TX.
2. • Hodo W. Kvasnak A. and Brown R. (2009). "Field and Laboratory Investigation of Foamed Asphalt (Warm-Mix Asphalt) with High Recycled Asphalt Pavement Content for Sustainment and Rehabilitation of Asphalt Pavement." Proceedings of the 88 th Transportation Research Board Annual Meeting Washington D.C.
3. Evaluation of Warm-Mix Asphalt Produced with the Double Barrel Green Process