Studies on English modality / Anastasios Tsangalidis & Roberta Facchinetti, 2009
Ī grammatikī́ stī didaskalía / sýnkrisī encheiridíōn gia tī didaskalía tīs ellīnikīs
ōs xenīs glōssas / Vasíleios Spyrópoulos, Anastásios Tsaggalidīs, gepistīmonikī́ epiméleia
Spýros A. Moschónas, 2005