New pen device for biometrical 3D pressure analysis of handwritten characters, words and signatures. - Christian Hook; Jürgen Kempf; Georg Scharfenberg (WBMA@MM, 2003)

A Novel Digitizing Pen for the Analysis of Pen Pressure and Inclination in Handwriting Biometrics. - Christian Hook; Jürgen Kempf; Georg Scharfenberg (ECCV Workshop BioAW, 2004)

An Identification of Japanese Numerical Characters on a Biometrical Smart Pen System. - Takeshi Takita; Seiichiro Hangai; Jürgen Kempf; Christian Hook; Georg Scharfenberg (AutoID, 2007)

Towards an Automated Analysis of Neuroleptics' Impact on Human Hand Motor Skills. - Matthias Dose; Christian Gruber; Ariane Grunz; Christian Hook; Jürgen Kempf; Georg Scharfenberg; Bernhard Sick (CIBCB, 2007)

Person Authentication by Handwriting in air using a Biometric Smart Pen Device. - Muzaffar Bashir; Georg Scharfenberg; Jürgen Kempf (BIOSIG, 2011)