@article {kouroupetroglou2009a,
	title = {Usability Methodologies for Real-Life Voice User Interfaces"},
	journal = {International Journal of Information Technology and Web Engineering},
	volume = {4},
	number = {4},
	year = {2009},
	pages = {78{\textendash}94},
	doi = {10.4018/jitwe.2009100105},
	author = {Kouroupetroglou, G and Spiliotopoulos, D.}
}
