\input zb-basic
\input zb-matheduc
\iteman{ZMATH 2012e.00522}
\itemau{Palczak, Arkadiusz}
\itemti{A math RAP. (Matematyczny RAP.)}
\itemso{Matematyka 65, No. 5, 50-52 (2012).}
\itemcc{F30 F40}
\itemut{mathematical thinking; mathematical induction; problem solving}
\itemli{}
\end