Stewart, Professor Ian (4) Stewart, Ian (3) Clegg, Stewart R, Skyttermoen, Torgeir, Vaagaasar, Anne Live (2) Peters, Guus, Vissers, Willem, Vlietstra, Bart (2) Stewart, James (mcmaster University And University Of Toronto), Redlin, Lothar (pennsylvania State University, Watson, Saleem (california State University (1)