RSL is an acronym that stands for Rudolf Steiner Lecture. The FMC (Free Man Creator) project works with a standard format for referencing lectures. It consists of the date of the lecture, followed by its GA number.
1/ one has to be aware that
- certain lectures have been moved between GA volumes in the various versions of each cycle
- Rudolf Steiner held multiple lectures on certain days, so one could argue the nomenclature is not sufficiently granular to uniquely identify a lecture.