(2011) 15th ISPC Summer Symposium of the International Society for the Philosophy of Chemistry — Location: Universidad de los Andes, Bogota, Colombia (9.August.2011)
Thyssen, P. (2011). A Group Theoretical Analysis of the Periodic System of Elements. 15th ISPC Summer Symposium of the International Society for the Philosophy of Chemistry, Universidad de los Andes, Bogota, Colombia. https://hdl.handle.net/2078.5/24054