@Article{177598,
     author = "Thomás A. S. Haddad",
     title = "Christoph Clavius, S. J. on the Reality of Ptolemaic Cosmology : "Ex Suppositione" Reasoning and the Problem of (Dis)continuity of Early Modern Natural Philosophy ",
     year =  2009,
     volume =  41,
     number =  ,
     journal =  Organon,
     pages =  s. 195-204,
    }