found: Exhortation à l'étude de la médecine, 2002:p. 85 (Εἱς τὸ Μηνοδότου Σεβήρῳ Προτρεπτικὸς ἐπ' ιατρικήν)
found: Thesaurus linguae graecae, 18 January 2011(Adhortatio ad artes addiscendas)
found: His Nobiltà delle arti, c1986:p. 43 (Protreptikos epi technas) p. 102 (Kaibel corrupted the Aldine ed.'s title of Protreptikos epi tas technas into Protreptikos ep'iatrikēn)
found: Oxford class. dict.(Protrepticus)
found: Megalē Hellēnikē enkykl.(Protreptikos epi technas)
found: Callimachi Hymni et epigrammata, 1741:t.p. (Galeni Suasoria ad artes)
found: RLIN, Jan. 13, 2006(forms of title: Suasoria ad artes oratio; Suasoria ad artes; Galeni Suasoria ad artes; Oratio suasoria ad artes; Protreptikos epi tas technas; Galeni adhortatio ad artes; Galeni Pergameni Suasoria ad artes oratio; Protrepticus)
found: His Nobiltà delle arti, c1986:t.p. (Nobiltà delle arti) p. 13 (Protrettico alle arti)
found: Classical review, new series, vol. 52, no. 2 (2002), surrogate:p. 273-274 (Adhortatio ad artes addiscendas or Protreptikos; only the first part of Protreptikos on arts in general survives; the second part was lost in the 12th century)
found: Cambridge companion to Galen, c2008:p. 391 (Protrepticus, abbreviated Protr.) p. 399 (Protr., English title: Exhortation to the arts)
