By The Open University
By Warwick Bray
By Meyer, Johann Jakob
By Fyodor M. Dostoevsky
By Hendrickson, Robert
By R L Bytwerk
By Carmichael, Joel
By PH Earl F Ziemke
By A. D. Aleksandrov, A. N. Kolmogorov, M. A. Lavrent'ev
By Edward Burman
By Alex De Jonge