The canonical algebras (with an appendix by W. Crawley-Boevey)
In: Topics in Algebra. 1: Rings and representations of algebras, Jg. 26,1, S. 407-4321990
Computer and geometry teaching
In: Mathematics Education Research In Finland: yearbook, Finnish Association of Mathematics and Science Education Research, Jg. 3, S. 61-791985Construction of tilted algebras
In: Representations of Algebras. Proceedings of the Third International Conference on Representations of Algebras, held in Puebla, Mexico, August 4 - 8, 1980, Jg. 903, S. 125-1671981
Coordination of leg movement in walking animals
In: Proceedings of the First International Conference on Simulation of Adaptive Behavior, Jg. [1], S. 105-1191991Coupling of completely integrable systems
the perturbation bundleIn: Applications of analytic and geometric methods to nonlinear differential equations : [proceedings of the NATO Advanced Research Workshop on Applications of Analytic and Geometric Methods to Nonlinear Differential Equations, Exeter, U.K., July 14 - 19, 1992] (NATO ASI series : Series C, Computer and physical sciences : 413), Jg. 1993, S. 125-1382009