Exercitatio Physica Extraordinaria De Metallis In Genere / Quam [...] In Illustri Gymnasio Gedanensi, Sub Patrocinio Viri [...] Danielis Lagi [...] Publicæ disquisitioni subijcit Georgius Newenfeldt [...]. - Neuenfeldt, Georg (1627-1673) (Typis Rhetianis, 1644)