Algebraic interpretation of geometric tolerances for evaluating geometric uncertainties in solid modeling. - Masatomo Inui; Harald E. Otto; Fumihiko Kimura (Solid Modeling and Applications, 1993)

A reference kernel model for feature-based CAD systems supported by conditional attributed rewrite systems. - Ferruccio Mandorli; Harald E. Otto; Fumihiko Kimura (Solid Modeling and Applications, 1993)

Modeling with Self Validation Features. - Ferruccio Mandorli; Umberto Cugini; Harald E. Otto; Fumihiko Kimura (Symposium on Solid Modeling and Applications, 1997)

Inheritance Semantics for Features. - Harald E. Otto; Fumihiko Kimura; Ferruccio Mandorli (PROLAMAT, 1998)

Error classification and recovery within CAD model reconstruction. - Massimo M. Ficco; Ferruccio Mandorli; Harald E. Otto (Symposium on Solid Modeling and Applications, 1999)

Solid Model Reconstruction from trimmed Surfaces Based on B-ReP Face Sewing. - Harald E. Otto; Massimo M. Ficco; Ferruccio Mandorli (Int. J. Shape Model., 2000)

Integration Issues on Combining Feature Technology and Life Cycle Assessment. - Harald E. Otto; K. G. Mueller; Fumihiko Kimura (PROLAMAT, 2001)

Integrating Life Cycle Aspects within Product Family Design: An Example for SMEs. - Harald E. Otto; K. G. Mueller; Fumihiko Kimura; Michele Germani; Ferruccio Mandorli (PROLAMAT, 2001)

From Concepts to Consistent Object Specifications: Translation of a Domain-Oriented Feature Framework into Practice. - Harald E. Otto (J. Comput. Sci. Technol., 2001)

A framework for negative knowledge to support hybrid geometric modeling education for product engineering. - Harald E. Otto; Ferruccio Mandorli (J. Comput. Des. Eng., 2018)

Advancing formative assessment in MCAD education: The visual analytics of parametric feature-based solid models. - Harald E. Otto; Ferruccio Mandorli (Adv. Eng. Informatics, 2021)