Botchkarev, Alexei. “An Overview of the Conceptual Simulation Modelling for Optimizing Funds Allocation in Health Care: Hip and Knee Replacement Case”. Applications of Modelling and Simulation, vol. 5, June 2021, pp. 145-5, https://www.ojs.arqiipubl.com/index.php/AMS_Journal/article/view/292.