Analysis of semi-open queueing networks using lost customers approximation with an application to robotic mobile fulfilment systems. - Sonja Otten; Ruslan K. Krenzler; Lin Xie; Hans Daduna; Karsten Kruse (OR Spectr., 2022)

Load balancing in a network of queueing-inventory systems. - Sonja Otten (Ann. Oper. Res., 2023)

Stability of queueing-inventory systems with customers of different priorities. - Sonja Otten; Hans Daduna (Ann. Oper. Res., 2023)

Introducing Combi-Stations in Robotic Mobile Fulfilment Systems: A Queueing-Theory-Based Efficiency Analysis. - Lin Xie; Sonja Otten (ICCL, 2024)