Algorithm to find the optimal queueing discipline in a system with branching streams of secondary customers

G. P. Klimov, “Time-sharing queueing systems, I,” Teor. Veroyatn. Primen.,19, No. 3, 558–576 (1974). M. Yu. Kitaev and V. V. Rykov, “Queueing system with branching streams of secondary customers,” Avtomat. Telemekh., No. 9, 52-61 (1980). E. A. Timofeev, “Optimization of mean queue lengths in a queueing system with branching streams of secondary customers,” Avtomat. Telemekh., No. 3, 60-67 (1995). F. R. Gantmakher, Matrix Theory [in Russian], Nauka, Moscow (1967). G. P. Klimov, “Time-sharing queueing systems, II,” Teor. Veroyatn. Primen.,23, No. 2, 331–339 (1978).