Acknowledgements

Besides the authors, we would also like to thank Stefan Sablatnög from the University of Ulm, Germany, and Mike Hewett from University of Texas, USA, for a thorough proofreading of the soccermanual 4.00. We have also received a lot of good suggestions from Erik Mattsson at the University of Karlskrona/Ronneby, Sweden, Fredrik Heintz at Linköping University. We are alsovery grateful for the work of the authors from the previous versions of the manual that could not help out on this version:

• David Andre at Berkeley, University of California, USA.
• Pascal Gugenberger at Humboldt University, Berlin, Germany.
• Marius Joldos at Technical University of Cluj-Napoca, Romania.
• Paul Arthur Navratil at University of Texas, USA.
• Tomoichi Takahashi at Chubu University, Japan.

We would not have been able to do this manual without the above mentioned people^1.3.