Made from the German-language part of the free Wikipedia encyclopedia in the Wikipress publishing house a book appeared concerning the bicycle technology (technology, types, practice). Under the direction of Ralf Roletschek and other Wikipedianes the book was provided with articles taken from the Wikipedia area ‘bicycle technology’. The book can be ordered under the following ISBN no. 386640008X in each book shop / wikipress.

Additional book recommandations:

• Smolik/Etzel - the large bicycle encyclopedia - ISBN 3-87073-127-3
• Gunnar Fehlau - 1000 Tipps for Biker - ISBN 3-89595-156-0