By Liviu I. Nicolaescu
By Stewart/Tall, Ian Stewart, David Tall
By Sawyer, W. W.
By H M. Edwards
By G. Bachman, Lawrence Narici
By Thompson, Silvanus P., Robert, Tim
By Micheal O'Searcoid
By Satish Shirali, Harkrishan Lal Vasudeva
By Bryan Rynne, M.A. Youngson
By Herve Le Dret
By Francoise Demengel, Gilbert Demengel, Reinie Erne
By Bryan P. Rynne (Department of Mathematics, Heriot-Watt University, Edinburgh), Martin A. Youngson
By Jean-Paul Penot
By Bernt Oksendal, Agnes Sulem
By K.E. Hirst
By Gheorghe Morosanu
By Boris Makarov, Anatolii Podkorytov
By Filip Rindler
By Steffen Roch, Pedro A. Santos, Bernd Silbermann
By Arturo Kohatsu-Higa, Atsushi Takeuchi
By Wolfram Koepf
By Achim Klenke
By Dorina Mitrea
By R. P. Burn (University of Exeter)
By S.L. Salas, Einar Hille
By Maker, Brainstorm
By Spiegel, Murray R., Murray Spiegel
By Sneddon, Ian N.
By Churchill, Ruel V., Brown, James Ward