Urquart, E.

• Τόμ. 28, Αρ. 3 (1993) - Άρθρα
  Middle jurassic - early cretaceous radiolarian biochronology of the tethys: implications for the age of radiolarites in the Hellinides (Greece)
  Λεπτομέρειες  PDF
• Τόμ. 28 (1992) - Επιτομές
  Middle jurassic- early cretaceous radiolarin biochronology of Tethys: implications for the age of radiolarites in the Hellenides (Greece) (Abstracts)
  Λεπτομέρειες  PDF