Parviainen, J. , Haataja, K. , Väänänen, A. , Toivanen, P.. "Tablet Computer as a User Interface: Intelligent Solutions for Multifunctional Hardcopy Devices". World Academy of Science, Engineering and Technology, Open Science Index 71, International Journal of Computer and Information Engineering, (2012), 6(11), 1469 - 1477.