Papajorgji P. Software engineering techniques applied to agricultural systems : an object-oriented and UML approach / P. Papajorgji, P. Pardalos, 2006 r=on-line. - Текст : электронный.
Oliveira C.A.S. Mathematical Aspects of Network Routing Optimization : монография / by Carlos A.S. Oliveira, Panos M. Pardalos., 2011 r=on-line (Введено оглавление). - Текст : электронный.