By James, Prof Glyn, Burley, David, Dyke, Prof Phil, Searl, John, Steele, Nigel, Wright, Jerry
By School Mathematics Project
By Sanders, Paul
By Patmore, Mark, Handbury, Michael, Jeskins, John, Baxter, Howard, Matthews, Jean
By Ritchings, Mark
By Werskey, Gary
By Lloyd, G. E. R.
By Senior, Trevor
By Nicolaides, A.
By Patterson, George, Nicolaides, A., Kuang, Myat Thaw
By George S. Greenstein
By Fischer-Cripps, Anthony C.
By Fox, R.W.
By Coben, Diana, Atere-Roberts, Elizabeth
By SPMG, Scottish Primary Maths Group, Bryan Milner
By David Clemson
By Abramson, J. H.
By Wang, Zikun, Yang, Xiangqun
By Pocock, Stuart J.
By Westwood, Peter
By Stewart, C M, Westwood, Peter
By Bird, John O., May, A.J.C.
By Macfarlane, Dougie
By McMahon, David
By Deft, John A.