Rubuta ci gaba don wannan sakin layi - Gerard "Geert" Schipper (an haife shi a ranar 23 ga Nuwamba 1948 a Ter Apel) ɗan tseren keke ne daga Netherlands. Ya zama zakaran duniya a gasar tsere ta lokaci a gasar zakarun duniya ta UCI ta 1982
tare da Maarten Ducrot, Gerrit Solleveld da kuma Frits Van Bindsbergen. Ya lashe gasar Olympics a shekarar 1981 da Ronde van Noord-Holland a shekarar 1985.