\input zb-basic
\input zb-matheduc
\iteman{ZMATH 1978a.00259}
\itemau{Fraedrich, A.M.}
\itemti{Axiomatic work at senior high school level with the example of finite geometry. Axiomatisches Arbeiten in der Sekundarstufe 2 am Beispiel der endlichen Geometrie .}
\itemso{Didaktik Math. (1977) v. 5(2) p. 141-160.}
\itemab

\itemrv{~}
\itemcc{}
\itemut{}
\itemli{}
\end