Lou de Boer (*1947) studied Mathematics and Music in Amsterdam. From 1971 to 1986 he taught mathematics at the Cartesius Lyceum in Amsterdam. Afterwards, until 1992, he was ICT consultant for the dutch telecom company. Since 1977 he is engaged in anthroposophy and its relations to mathematics, physics, music and philosophy.

• Classification of real projective pathcurves, published in MPK 2004-11
• Trefftypen, published in  MPK 2005-11
• Symmetric partitioning of the projective line, published in MPK 2006-08
• The complex determined by a congruence and a line, published in MPK 2007-09
• Vectorspaces and Projective Geometry
• On the Fundamentals of Geometry