Πανελλήνιο Συνέδριο Panhellenic Meeting Biological Meeting of Balkan Countries proceedings...[from] 19th Panhellenic Meeting, May 15-18, 1997, Thessaloniki proceedings...[from] 1st Biological Meeting of Balkan Countries, May 15-18, 1997, Thessaloniki (Ελληνική Εταιρεία Βιολογικών Επιστημών, 1997)