Erhardi Weigelii ... Tetractyn Tetracty Pythagoreae correspondentem, ut primum disceptationum suarum specimen ... exponit Societas Pythagorea in Alma Salana.
Academia Jenensis (Jena). - Societas Pythagorea.
[Jena] :  Sumptibus J. Meyeri typis Wertherianis, 
1673.