Report (2013) - A. Aselmaa (author), Anet Aselmaa (author), Richard Hendrik Goossens (author), RHM Goossens (author), Richard Goossens (author), Richard H.M. Goossens (author), R.H.M. Goossens (author), A Laprie (author), S Ken (author), T Fechter (author), A. Ramkumar (author), A Ramkumar (author), A Freudenthal (author), A. Freudenthal (author)