@inproceedings{Ben_j2001, author = {Klaus~Benecke}, title = {Remarks to Step by Step Application of Operations}, booktitle = {{Tagungsband zum 13. GI-Workshop `Grundlagen von Datenbanken', Gommern 5.--8.~Juni 2001}}, year = 2001, editor = {Martin Endig and Thomas Herstel}, series = {Technischer Bericht}, volume = {10/2001}, publisher = fin, pages = {8--12}, url = {http://wwwiti.cs.uni-magdeburg.de/iti_db/workshops/gdb2001/papers/Ben01gdb.ps} }