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Hartl, R.F., Kort, P.M. & Wrzaczek, S. (2025). Optimal entry deterrence under uncertainty. Central European Journal of Operations Research 10.1007/s10100-025-00966-z.

Feichtinger, G., Grass, D., Kort, P.M., Novak, A.J., Seidl, A. & Wrzaczek, S. (2024). How Hartl exceeds Skiba: determinants of a successful career in academia. Central European Journal of Operations Research 32 (2), 543-556. 10.1007/s10100-023-00889-7.

Feichtinger, G., Grass, D., Hartl, R.F., Kort, P.M. & Seidl, A. (2024). The digital economy and advertising diffusion models: Critical mass and the Stalling equilibrium. European Journal of Operational Research 10.1016/j.ejor.2024.05.043.

Grass, D., Wrzaczek, S., Caulkins, J.P., Feichtinger, G., Hartl, R.F., Kort, P.M., Kuhn, M., Fürnkranz-Prskawetz, A., Sanchez-Romero, M. & Seidl, A. (2024). Riding the waves from epidemic to endemic: Viral mutations, immunological change and policy responses. Theoretical Population Biology 156, 46-65. 10.1016/j.tpb.2024.02.002.

Caulkins, J.P., Grass, D., Feichtinger, G., Hartl, R.F., Kort, P.M., Kuhn, M., Fürnkranz-Prskawetz, A., Sanchez-Romero, M. ORCID: https://orcid.org/0000-0002-5999-6522, Seidl, A. & Wrzaczek, S. (2023). The hammer and the jab: Are COVID-19 lockdowns and vaccinations complements or substitutes? European Journal of Operational Research 311 (1), 233-250. 10.1016/j.ejor.2023.04.033.

Hartl, R.F., Kort, P.M. & Wrzaczek, S. (2023). Reputation or warranty, what is more effective against planned obsolescence? International Journal of Production Research 61, 9399-954. 10.1080/00207543.2021.2020929.

Feichtinger, G., Hartl, R.F., Kort, P.M., Seidl, A. & Wrzaczek, S. (2022). Asymmetric Information in a Capital Accumulation Differential Game with Spillover and Learning Effects. Journal of Optimization Theory and Applications 194, 878-895. 10.1007/s10957-022-02054-7.

Caulkins, J.P., Grass, D., Feichtinger, G., Hartl, R.F., Kort, P.M., Fürnkranz-Prskawetz, A., Seidl, A. & Wrzaczek, S. (2022). COVID-19 and Optimal Lockdown Strategies: The Effect of New and More Virulent Strains. In: Pandemics: Insurance and Social Protection. Eds. Boado-Penas, M.C., Eisenberg, J. & Şahin‬‬‬, Ş., pp. 163-190 Springer, Cham. ISBN 978-3-030-78334-1 10.1007/978-3-030-78334-1_9.

Grass, D., Feichtinger, G., Kort, P.M. & Seidl, A. (2021). Why (some) abnormal problems are “normal”. Systems & Control Letters 154, e104971. 10.1016/j.sysconle.2021.104971.

Caulkins, J.P., Grass, D., Feichtinger, G., Hartl, R.F., Kort, P.M., Prskawetz, A., Seidl, A. & Wrzaczek, S. (2021). The optimal lockdown intensity for COVID-19. Journal of Mathematical Economics 93, e102489. 10.1016/j.jmateco.2021.102489.

Feichtinger, G., Grass, D., Kort, P.M. & Seidl, A. (2021). On the Matthew effect in research careers: Abnormality on the boundary. Journal of Economic Dynamics and Control 123, e104058. 10.1016/j.jedc.2020.104058.

Caulkins, J., Grass, D., Feichtinger, G., Hartl, R., Kort, P.M., Prskawetz, A., Seidl, A. & Wrzaczek, S. (2020). How long should the COVID-19 lockdown continue? PLoS ONE 15 (12), e0243413. 10.1371/journal.pone.0243413.

Caulkins, J.P., Grass, D., Feichtinger, G., Hartl, R.F., Kort, P.M., Prskawetz, A., Seidl, A. & Wrzaczek, S. (2020). The optimal lockdown intensity for COVID-19. IIASA Working Paper. Laxenburg, Austria: WP-20-015

Caulkins, J., Grass, D., Feichtinger, G., Hartl, R., Kort, P.M., Prskawetz, A., Seidl, A. & Wrzazcek, S. (2020). How Long Should the COVID-19 Lockdown Continue? IIASA Working Paper. Laxenburg, Austria: WP-20-010

Feichtinger, G., Grass, D., Kort, P.M. & Seidl, A. (2020). On the Matthew effect in research careers: Abnormality on the boundary. IIASA Working Paper. Laxenburg, Austria: WP-20-008

Feichtinger, G., Grass, D. & Kort, P.M. (2019). Optimal scientific production over the life cycle. Journal of Economic Dynamics and Control 108, e103752. 10.1016/j.jedc.2019.103752.

Grames, J., Grass, D., Kort, P.M. & Fürnkranz-Prskawetz, A. (2018). Optimal investment and location decisions of a firm in a flood risk area using impulse control theory. Central European Journal of Operations Research 27 (4), 1051-1077. 10.1007/s10100-018-0532-0.

Caulkins, J.P., Feichtinger, G., Grass, D., Hartl, R.F., Kort, P.M. & Seidl, A. (2017). Interaction of Pricing, Advertising and Experience Quality: A Dynamic Analysis. European Journal of Operational Research 256 (3), 877-885. 10.1016/j.ejor.2016.06.056.

Caulkins, J.p., Feichtinger, G., Grass, D., Hartl, R.F., Kort, P.M., Novak, A.J., Seidl, A. & Wirl, F. (2014). A Dynamic Analysis of Schelling’s Binary Corruption Model: A Competitive Equilibrium Approach. Journal of Optimization Theory and Applications 161 (2), 608-625. 10.1007/s10957-013-0420-7.

Kort, P.M., Haunschmied, J.L. & Feichtinger, G. (1999). Optimal firm investment in security. Annals of Operations Research 88, 81-98. 10.1023/A:1018907119401.

Kort, P.M., Feichtinger, G., Hartl, R.F. & Haunschmied, J.L. (1998). Optimal enforcement policies (crackdowns) on an illicit drug market. Optimal Control Applications and Methods 19 (3), 169-184. 10.1002/(SICI)1099-1514(199805/06)19:3<169::AID-OCA625>3.0.CO;.