The Degree Structure of 1-L Reductions. - Hans-Jörg Burtschick; Albrecht Hoene (MFCS, 1992)

Comparing Counting Classes for Logspace, One-way Logspace, and First-order. - Hans-Jörg Burtschick (MFCS, 1995)

Lindstroem Quantifiers and Leaf Language Definability - Hans-Jörg Burtschick; Heribert Vollmer (Electron. Colloquium Comput. Complex., 1996)

On Sets Turing Reducible to p-Selective Sets. - Hans-Jörg Burtschick; Wolfgang Lindner 002 (Theory Comput. Syst., 1997)

Berechnungs- und Beschreibungskomplexität von Zählfunktionen und Lindströmquantoren. - Hans-Jörg Burtschick (Shaker, 1997)

Lindström Quantifiers and Leaf Language Definability. - Hans-Jörg Burtschick; Heribert Vollmer (Int. J. Found. Comput. Sci., 1998)