ALGRA, an Algebraic-graphic Programming Language for Modelling. - Helmut Kiesewetter (Eurographics, 1980)

Topologic and metric modellig of visual objects. - Norbert Eichhorn; Helmut Kiesewetter (Recent Issues in Pattern Analysis and Recognition, 1989)

INTEGER analysis of two-dimensional polygonal objects. - Norbert Eichhorn; Helmut Kiesewetter (Computing, 1989)

Automatische Ableitung und Verarbeitung von Linienbildern. - Helmut Kiesewetter; Wolfgang Osten; Jürgen Saedler (it Inf. Technol., 1990)

DIGORGAO - A Digital Problem Solution Concept. - Helmut Kiesewetter (ARCS Workshops, 2004)