Blanco, M. “Modification of an Amposta Origin Bitumen by Using Tlie Friedel and Crafts Reaction With Toluyiene-2,4-Diisocyanate”. Materiales de Construcción 38, no. 209 (March 30, 1988): 13–23. Accessed April 23, 2024. https://materconstrucc.revistas.csic.es/index.php/materconstrucc/article/view/845.