00355nas a2200133 4500000000100000000000100001008004100002260003300043100002100076700001600097700001700113245007900130300001200209 2008 d bSpringeraBerlin, Heidelberg1 aGabriele Lenzini1 aNabil Sahli1 aHenk Eertink00aAgents Selecting Trustworthy Recommendations in Mobile Virtual Communities a182-204