Viking's season: That rush to get them / Interactivity: A four-axes slapskate / Interraps still loves to innovate / A slapshoe should be different, too! / The FINN clap skate mechanism - ZZZ(Klappschlittschuh) (Speedskating World, 1997)
Keywords: speed skating; sports equipment; equipment; shoe; mechanics; Netherlands; endurance sports; sports facilities and sports equipment