Fountoulakis, O. (2002). Hansen or Kleanthes: Who was the Architect of the Buildings of the Duchess of Piacenza in Athens? architectura.

Fountoulakis, Olga. "Hansen or Kleanthes: Who Was the Architect of the Buildings of the Duchess of Piacenza in Athens?" Architectura 2002.

Fountoulakis, Olga. "Hansen or Kleanthes: Who Was the Architect of the Buildings of the Duchess of Piacenza in Athens?" Architectura, 2002.