Lev D. Beklemishev
M.V. Nermut, A.C. Steven
John Stirling Meyer, J.P. Schade
G. Poncelet, P.A. Jacobs, B. Delmon, P. Grange
Juan Ferrera, J. Lopez-Gomez, F.R. Ruiz del Portal
L. Brannon-Peppas, R.S. Harland
Alex Poznyak
A. Violante, J.-M. Bollag, L. Gianfreda, P.M. Huang
Y. Zhu
A.G. Kostianoy, J.C.J. Nihoul, V.B. Rodionov
