Juha Lehikoinen Jussi Holopainen Marja Salmimaa Angelo Aldrovandi MEX: A Distributed Software Architecture for Wearable Computers. 52-57 1999 ISWC http://computer.org/proceedings/iswc/0428/04280052abs.htm db/conf/iswc/iswc1999.html#LehikoinenHSA99