books

Books about Ritzerfeld:

booksBzzlletin nr.103, februari 1983: J. Ritzerfeld by N/A (1983)

booksMarketing-Mix-Strate... in Investitionsg?term?r... Entwicklung und Simulation marktstrukturspezifi... Strategien... (1993)

wiki

Wiki information Ritzerfeld:

Jörg Ritzerfeld
Professional Ski Jumper, Athlete, Person, Measured person

Jörg Ritzerfeld is a German ski jumper who has competed since 2001. His best World Cup finish was third in the team large hill events twice, earning them in 2005 and 2007. Rizerfeld also finished 40th in the individual event at the 2002 FIS Ski...

Spirit duplicator

A spirit duplicator was a printing method invented in 1923 by Wilhelm Ritzerfeld and commonly used for much of the rest of the 20th century. The term "spirit duplicator" refers to the alcohols which were a major component of the solvents used as...