@masterthesis{15386,
    title = "Investigating the effectiveness of formal and informal mentoring in improving teacher performance",
    author = "Μαυρίκα, Βασιλική",
    year = "2011",
    school = "Τμήμα  Οικονομίας και Βιώσιμης Ανάπτυξης, Χαροκόπειο Πανεπιστήμιο"
}