\bibcite{Nayak04}{Nayak and Stojmenovic, 2010}
\bibcite{pedraza2006}{Pedraza et\nobreakspace {}al., 2006}
\bibcite{qu2013distributed}{Qu and Georgakopoulos, 2013}
\bibcite{Nayak04}{Nayak and Stojmenovic, 2010}
\bibcite{pedraza2006}{Pedraza et\nobreakspace {}al., 2006}
\bibcite{qu2013distributed}{Qu and Georgakopoulos, 2013}