Ubiquitous home control based on SIP and presence service. - Robin Acker; Steffen Brandt; Nicolas Buchmann; Thorsten Fugmann; Michael Massoth (iiWAS, 2010)

Mobile Call Authentication using Near Field Communication-based Smart Cards for Proof of Identity towards a Company. - Robin Acker; Andreas Plies; Michael Massoth; Ralf S. Mayer; Torsten Wiens (MoMM, 2013)