Purmann, Johann Georg: Prolusio ... De Evidentia Critica Ad Sacras Litteras Referenda : / Qua Lustrationis Scholasticæ Solemnia Jussu Et Auctoritate Venerandi Consistorii ... Indicit Joh. Georgius Purmannus Gymnasii Rector Adjunctus. Francofurti Ad Moenum. Francofurti a. M. : Bayrhoffer, 1768