By Billera, Louis J., Björner, Anders, Greene, Curtis, Simion, Rodica E., Stanley, Richard P.
By Rob Eastaway, John Haigh
By Masys, Anthony J.
By Wang, Xiangyu
By Borg, Ingwer, Groenen, Patrick J.F., Mair, Patrick
By Iohara, Kenji, Koga, Yoshiyuki
By Squartini, Tiziano, Garlaschelli, Diego
By Zafeiris, Anna, Vicsek, Tamas
By Guttmann, A. J.
By Lee, Kwang Hyung
By Schuster, Peter M., Seisenberger, Monika, Weiermann, Andreas
By Louie, A.H.
By Open University Course Team
By Larry A. Finkelstein, W.M. Kantor
By Lawson, Mark V.
By Reeves, N/A
By Baglivo, Jenny
By Stephen Few
By William W. Adams, Philippe Loustaunau
By Cameron, Peter J.
By Magnus, Wilhelm, etc.
By Stanley, Richard P., Fomin, Sergey
By Eisenbud, David, Grayson, Daniel R., Stillman, Mike, Sturmfels, Bernd
By Lothaire, M.
By Betten, Anton, Kohnert, Axel, Laue, Reinhard, Wassermann, Alfred
By Crapo, H., Senato, D.
By Howie, John M.