A flexible concept for decision support: Evaluation and selection of suitable product development activities. - Heinz Ahn; Harald Dyckhoff (Eur. J. Oper. Res., 1997)

Measuring the relative balance of DMUs. - Heinz Ahn; Ludmila Neumann; Nadia Vazquez Novoa (Eur. J. Oper. Res., 2012)

Corrigendum to "Measuring the relative balance of DMUs" [Eur. J. Oper. Res. 221(2012) 417-423]. - Heinz Ahn; Ludmila Neumann; Nadia Vazquez Novoa (Eur. J. Oper. Res., 2012)

Zielsystem(atisierung) im Kontext des IT-Alignments. - Heinz Ahn; Kersten Hentrich (HMD Prax. Wirtsch., 2014)

Steuerung von IT-Compliance Management Systemen in Konzernstrukturen. - Heinz Ahn; Christian Maxa; Johannes C. Panitz (HMD Prax. Wirtsch., 2014)

The overall Malmquist index: a new approach for measuring productivity changes over time. - Mohsen Afsharian; Heinz Ahn (Ann. Oper. Res., 2015)

Developing selective proportionality on the FDH models: new insight on the proportionality axiom. - Mohsen Afsharian; Heinz Ahn; Mohammadreza Alirezaee (Int. J. Inf. Decis. Sci., 2015)

The decoy effect in relative performance evaluation and the debiasing role of DEA. - Heinz Ahn; Nadia Vazquez Novoa (Eur. J. Oper. Res., 2016)

A DEA-based incentives system for centrally managed multi-unit organisations. - Mohsen Afsharian; Heinz Ahn; Emmanuel Thanassoulis (Eur. J. Oper. Res., 2017)

Multi-period productivity measurement under centralized management with an empirical illustration to German saving banks. - Mohsen Afsharian; Heinz Ahn (OR Spectr., 2017)

Performance comparison of management groups under centralised management. - Mohsen Afsharian; Heinz Ahn; Sören Guntram Harms (Eur. J. Oper. Res., 2019)

A frontier-based system of incentives for units in organisations with varying degrees of decentralisation. - Mohsen Afsharian; Heinz Ahn; Emmanuel Thanassoulis (Eur. J. Oper. Res., 2019)

A review of DEA approaches applying a common set of weights: The perspective of centralized management. - Mohsen Afsharian; Heinz Ahn; Sören Guntram Harms (Eur. J. Oper. Res., 2021)

Comparative performance analysis of frontier-based efficiency measurement methods - A Monte Carlo simulation. - Heinz Ahn; Marcel Clermont; Julia Langner (Eur. J. Oper. Res., 2023)

Individualized second stage corrections in data envelopment analysis. - Mohsen Afsharian; Sara Kamali; Heinz Ahn; Peter Bogetoft (Eur. J. Oper. Res., 2024)

Incentivizing centrally regulated units to improve performance: Pitfalls and requirements. - Mohsen Afsharian; Heinz Ahn; Emmanuel Thanassoulis (J. Oper. Res. Soc., 2024)

Endogenous system-wide output prices in incentive regulation. - Mohsen Afsharian; Heinz Ahn; Peter Bogetoft; Sara Kamali; Ana Lopes-Ahn (Eur. J. Oper. Res., 2025)