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The MAPt/Pht/∞ queueing system and multiclass [MAPT/PHT/∞]k queueing network
Gerhardt, Ira, (2017)
The (Pht-Pht-(infinity))k Queueing System: Part II -- The Multiclass Network
Nelson, Barry L., (2004)
Multivariate mixtures of normal distributions : properties, random vector generation, fitting, and as models of market daily changes
Wang, Jin, (2015)