H. Seyed-allaei, H. Seyed-allaei, and M. Ejtehadi. Abstract Book of the XXIII IUPAP International Conference on Statistical Physics, Genova, Italy, (9-13 July 2007)
D. Chakrabarti, D. Wales, and B. Bagchi. Abstract Book of the XXIII IUPAP International Conference on Statistical Physics, Genova, Italy, (9-13 July 2007)
O. Skovsmose. Roskilde: Centre for Research in Learning Mathematics, National University of Education, Roskilde University Centre, Aalborg University, (2000)