Nikolaidis, G., Stoyanov, D. Bilateral cooperation between Greece and Bulgaria in the field of philosophy and mental health. Athens: Papazissis pub., 2011 531-536,.
Nikolaidis, G., Stoyanov, D. Bilateral cooperation between Greece and Bulgaria in the field of philosophy and mental health. Athens: Papazissis pub., 2011 531-536,.
Nikolaidis, G., Stoyanov, D. (2011) Bilateral cooperation between Greece and Bulgaria in the field of philosophy and mental health, Athens: Papazissis pub. 531-536,.
Nikolaidis, G., & Stoyanov, D. (2011). Bilateral cooperation between Greece and Bulgaria in the field of philosophy and mental health. Public health and health care in Greece and Bulgaria : The challenge of the cross-border collaboration in times of financial crisis (с. 531-536). Athens: Papazissis pub..
Nikolaidis G, Stoyanov D. Bilateral cooperation between Greece and Bulgaria in the field of philosophy and mental health. Athens: Papazissis pub.; 2011. p. 531-536.