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yeah, exactly... this worked very well...

i used the commands hyperlink and hypertarget paired with the beamergotobutton and beamerreturnbutton!!
Thanks!!!

Hi everybody,
I am preparing a presentation with latex using the beamer-class... As I am a beginner, I would be glad if you could help me:
In my presentation, i have to explain some things and i give some examples... Now, I have to many examples included and I should shorten my presentation...
I ...

Thanks a lot, this works perfectly well!!

Hi everybody,
I have a little problem and would be really happy if someone could help me...
I have to write mathematical equation and I want to include pictures as these expressions can be expressed diagrammatically (Feynman diagrams)... So, i write
\begin{align}
f=\includegraphics[width=20mm ...