Holger Stiefeling

Evaluation of Upper Bounds and Least Nodes as Database Operations

Joachim Biskup, Holger Stiefeling, 1993, FODO.

Transitive Closure Algorithms for Very Large Databases

Joachim Biskup, Holger Stiefeling, 1988, WG.

Evaluation strategies for a subclass of recursive database queries

Holger Stiefeling, 1991 .

An Extension of SQL for Querying Graph Relations

Holger Stiefeling, Joachim Biskup, Uwe Räsch, 1990, Comput. Lang..