Fredrik Espinoza David De Roure Ola Hamfors Lucas Hinz Jesper Holmberg Carl Gustaf Jansson Nick R. Jennings Michael Luck Peter Lönnqvist Gopal Ramchurn Anna Sandin Mark K. Thompson Markus Bylund Intrusiveness Management for Focused, Efficient, and Enjoyable Activities. 143-157 2007 conf/disappearing/2007 The Disappearing Computer http://dx.doi.org/10.1007/978-3-540-72727-9_7 db/conf/disappearing/disappearing2007.html#EspinozaRHHHJJLLRSTB07