TY - CPAPER AU - Tadeusz Czachórski AU - Krzysztof Grochla AU - Adam Józefiok AU - Tomasz Nycz BT - “Computer Science & Information Technologies” (CSIT’2011) LA - eng PY - 2011 T2 - “Computer Science & Information Technologies” (CSIT’2011) TI - Simulation, Markov Chain and Diffusion Approximation Models – a Case Study ER -