alpha to omega: the G(r)eek Alphabet of Sampling. - Guido Moerkotte; Axel Hertzschuch (CIDR, 2020)

Simplicity Done Right for Join Ordering. - Axel Hertzschuch; Claudio Hartmann; Dirk Habich; Wolfgang Lehner (CIDR, 2021)

Small Selectivities Matter: Lifting the Burden of Empty Samples. - Axel Hertzschuch; Guido Moerkotte; Wolfgang Lehner; Norman May; Florian Wolf 002; Lars Fricke (SIGMOD Conference, 2021)

Turbo-Charging SPJ Query Plans with Learned Physical Join Operator Selections. - Axel Hertzschuch; Claudio Hartmann; Dirk Habich; Wolfgang Lehner (Proc. VLDB Endow., 2022)

PostBOUND: PostgreSQL with Upper Bound SPJ Query Optimization. - Rico Bergmann 002; Axel Hertzschuch; Claudio Hartmann; Dirk Habich; Wolfgang Lehner (BTW, 2023)

Robust Query Optimization for Analytical Database Systems. - Axel Hertzschuch (2023)