MINKEVIČIUS, Saulius; STEIŠŪNAS, Stasys. Laws of Little in an open queueing network. Nonlinear Analysis: Modelling and Control, [S. l.], v. 17, n. 3, p. 327–342, 2012. DOI: 10.15388/NA.17.3.14059. Disponível em: https://www.zurnalai.vu.lt/nonlinear-analysis/article/view/14059. Acesso em: 20 apr. 2025.