By Wolfram Koepf
By Achim Klenke
By N.M.J. Woodhouse
By David Jordan, Stephen A. Huggett, Roger Penrose (Mathematical Institute, Oxford)
By James Ryan, Peter F. Mahoney, Ian Greaves, Gavin Bowyer
By Hartmut Logemann, Eugene P. Ryan
By David F. Parker
By A.N. Pressley
By Andrew Pressley
By Ioan M. James
By Roozbeh Hazrat
By Gareth A. Jones, J.Mary Jones
By D.L. Johnson
By Vilmos Komornik
By Christopher Norman
By Micheal O'Searcoid
By Chen, Ben M., Lee, Tong Heng, Venkataramanan, Venkatakrishnan
By John Haigh
By Duncan Marsh (D-Cubed Ltd, Cambridge UK)
By Duncan Marsh
By Sean Dineen
By Franco Vivaldi
By Ravindra B. Bapat
By Bryan Rynne, M.A. Youngson
By Rudiger U. Seydel
By Masanori Morishita