Detecting Skype flows in Web traffic. - Emanuel P. Freire; Artur Ziviani; Ronaldo M. Salles (NOMS, 2008)

Detecting VoIP calls hidden in web traffic. - Emanuel P. Freire; Artur Ziviani; Ronaldo M. Salles (IEEE Trans. Netw. Serv. Manag., 2008)

On Metrics to Distinguish Skype Flows from HTTP Traffic. - Emanuel P. Freire; Artur Ziviani; Ronaldo Moreira Salles (J. Netw. Syst. Manag., 2009)