Application of non-linear integer optimization to advertising outlay / Bogusław FILIPOWICZ, Krystyna IDZIKOWSKA // W: CARS & FOF 2001 : 17\textsuperscript{th} [seventeenth] international conference on CAD/CAM, robotics and factories of the future : Durban, South Africa 10\textsuperscript{th} – 12\textsuperscript{th} July 2001 : proceedings, Vol. 2 / eds. Glen Bright & Wendy Janssens. — Durban : University of Natal. The Mechatronics and Robotics Research Group, 2001. — S. 1095–1102. — Bibliogr. s. 1102, Abstr.

Optimization of the \emph {M/M/m}/FIFO/\emph {m+N} queueing system with individual service and uniform flux of arrivals / Bogusław FILIPOWICZ, Krystyna IDZIKOWSKA // W: IEPM'2001 : international conference on Industrial engineering and production management : Quebec City, Canada, August 20–23, 2001 : proceedings, Vol. 2. — [Canada : s. n.], [2001]. — S. 964–973. — Bibliogr. s. 973, Abstr.

Systéme de file d'attente M/M/m/FIFO/N/F á temps de service individuel — [The M/M/m/FIFO/N/F queueing system with individual service times] / Bogusław FILIPOWICZ, Krystyna IDZIKOWSKA // W: Conception, analyse et gestion des systémes industriels : 3$^{\rm e}$ [troisiéme] conférence francophone de MOdélisation et SIMulation (MOSIM'01) : 25–27 avril 2001, Troyes, France, Vol. 2 / eds. Alexandre Dolgui, François Vernadat. — Ghent : Society for Computer Simulation International, 2001. — ISBN: 9781565552128 ; ISBN10: 1565552121. — S. 647–652. — Bibliogr. s. 652, Rés.