Pejman Sanaei Reza Akbari Vahid Zeighami Sheida Shams Using Firefly Algorithm to Solve Resource Constrained Project Scheduling Problem. 417-428 2012 BIC-TA (1) https://doi.org/10.1007/978-81-322-1038-2_35 conf/bic-ta/2012-1 db/conf/bic-ta/bic-ta2012-1.html#SanaeiAZS12