R. Kalgudi, A. Chrzastek, G. Kyazze, I. Iqbal, and T. Keshavarz, “Synergistic Effect of Tryptophan and Erythromycin on Pseudomonas Aeruginosa Biofilm Structure and Dispersal”, Chemical Engineering Transactions, vol. 64, pp. 637-642, May 2018.