A formulae collection (in danish):
It should be printable in A5 double sided (like a small pamphlet).
If you feel like adding/removing/editing something then be my guest, please mail me at the address found elsewhere on this site and I'll happily help you get started (it is written i LaTeX).
To print the postcsript directly on a good ol' unix/linux system, use: lpr -Zsduplex formelsamling.ps