Supporting Situation Awareness in Demanding Operating Environments through Wearable User Interfaces. - Jari Laarni; Juhani Heinilä; Jukka Häkkinen; Virpi Kalakoski; Kari Kallinen; Kristian Lukander; Paula Löppönen; Tapio Palomäki; Niklas Ravaja; Paula Savioja; Antti Väätänen (HCI (17), 2009)