Weiss, G., & Manhart, F. (2013). About some Mappings Defined by a Classical Desargues Configuration. Journal for Geometry and  Graphics, 17, 69–80. http://hdl.handle.net/20.500.12708/155316 ( reposiTUm)

Tsutsumi, E., Schröcker, H.-P., Stachel, H., & Weiss, G. (2005). Evaluation of Students’ Spatial Abilities in Austria and Germany. Journal for Geometry and  Graphics, 9(1), 107–117. http://hdl.handle.net/20.500.12708/171887 ( reposiTUm)