TY - CPAPER AU - Tadeusz Czachórski AU - Ferhan Pekergin AU - D.D. Kouvatsos BT - Proc. of HET-NETs '04, Performance Modelling and Evaluation of Heterogenous Networks LA - eng PY - 2004 T2 - Proc. of HET-NETs '04, Performance Modelling and Evaluation of Heterogenous Networks TI - Diffusion Approximation as a modelling tool in congestion control and performance evaluation, tutorial ER -