Written by:
Sawsan I. Khdair, Kostas Triantafyllidis, Vasileios Papadopoulos, Konstantinos N. Zafeiris, Elena Kanevska-Nikolova, Evangelia Thomadaki, Christina Markou, Nikolaos Th. Konstantinidis, Panagiotis G. Papadimitriou, Panagiotis G. Kripas, Abraham Salasidis, Stoyan Raichevsky, Evangelos Audikos, Ioannis Fragopoulos, Dimitris Kourkouridis, Yavor Saraev, Aikaterini (Katerina) Markou, Eleonora Naxidou, Ioannis M. Bakirtzis, Abraham Salasidis, Antonis Bartsiokas, Chrysa Melkidi, M. G. Varvounis, Walter Puchner, Parthenopi Keltsidou, Nikolaos Kokkas, Thanasis V. Koukoulos, Antonis K. Liapis, Stelios Mouzakis, Christina Vavouris-Dimaki, Panagiotis Vasakos, Jordan F. Sinamidis, Mara Zacharaki, Garyfallia G. Theodoridou, Nadia Macha-Bizoumi.