@conference{pontiki2015, author = "Ποντίκη, Μαρία and Παπαγεωργίου, Χάρης", address = "Berlin", booktitle = "Proceedings of the 12th International Conference on Greek Linguistics (ICGL 12)", organization = "Freie Universit{\"a}t ", title = "{O}pinion {M}ining and {T}arget {E}xtraction in {G}reek {R}eview {T}exts ", year = "2015", }