Reilly, D. , Milczarski, P. , Dowdall, S. , Hłobaż, A. , Podlaski, K. , Bollaert, H. (2015), 'Comparison between Approaches Used in Two WalkAbout Projects', World Academy of Science, Engineering and Technology, Open Science Index 97, International Journal of Computer and Information Engineering, 9(1), 140 - 147.