\begin{thebibliography}{W{\accent127 a}h87} \bibitem[AEN00]{aichingereckernoebauer00:TUOCINT} E.~Aichinger, J.~Ecker, and C.~N{\accent127 o}bauer. \newblock The use of computers in near-ring theory. \newblock In {\em Nearrings And Nearfields (Stellenbosch, 1997)}, pages 35--41. Kluwer Academic Publishing, Dordrecht, the Netherlands, 2000. \bibitem[Aic00]{aichingerea00:CWN} E.~Aichinger. \newblock {F}. {B}inder, {J}. {E}cker, {P}. {M}ayr, and {C}. {N}{\accent127 o}bauer. {A}lgorithms for near rings of non-linear transformations. \newblock In {\em Proceedings of the ISSAC 2000}, pages 23--29, St.~Andrews, Scotland, 2000. \bibitem[Cla92]{Clay:Nearrings} James~R. Clay. \newblock {\em Nearrings. Geneses and Applications}. \newblock Oxford University Press, Oxford, New York, Tokyo, 1992. \bibitem[Eck98]{ecker98:OTNOPFONGOC2} J{\"u}rgen Ecker. \newblock On the number of polynomial functions on nilpotent groups of class 2. \newblock In {\em Contributions to general algebra, 10 (Klagenfurt, 1997)}, pages 133--137. Heyn, Klagenfurt, 1998. \bibitem[May00]{Mayr:Representations} P.~Mayr. \newblock Fixed-point-free representations over fields of prime characteristic. \newblock Reports of the Mathematical Institutes 554, Johannes Kepler University Linz, 2000. \bibitem[Mel85]{meldrum85:NATLWG} J.~D.~P. Meldrum. \newblock {\em Near-rings and their links with groups}. \newblock Pitman (Advanced Publishing Program), Boston, Mass., 1985. \bibitem[Pil83]{Pilz:Nearrings} G{\accent127 u}nter Pilz. \newblock {\em Near-Rings. The Theory and its Applications}, volume~23 of {\em North-Holland Mathematics Studies}. \newblock North-Holland Publishing Company, Amsterdam, New York, Oxford, revised edition, 1983. \bibitem[Sco69]{scott69:TAOPMOAGATSOCPPGI} S.~D. Scott. \newblock The arithmetic of polynomial maps over a group and the structure of certain permutational polynomial groups. {I}. \newblock {\em Monatsh. Math.}, 73:250--267, 1969. \bibitem[TW80]{thomaswood80:GT} A.~D. Thomas and G.~V. Wood. \newblock {\em Group tables}. \newblock Shiva Publishing Ltd., Nantwich, 1980. \bibitem[W{\accent127 a}h87]{Waehling:Fastkoerper} Heinz W{\accent127 a}hling. \newblock {\em Theorie der Fastk{\accent127 o}rper}. \newblock Thales Verlag, Essen, 1987. \bibitem[Wol67]{Wolf:Spaces} Joseph~Albert Wolf. \newblock {\em Spaces of Constant Curvature}. \newblock McGraw-Hill, New York, 1967. \end{thebibliography}