Roland and Petra Duss
From Circopedia
Animal Trainers
- Video: Petra & Roland Duss, sea lion act, at the International Circus Festival of Monte Carlo (1995)
- Video: Petra & Roland Duss, sea lion act, at the International Circus Festival of Monte Carlo (2001)
- Video: Petra & Roland Duss, sea lion act, at the International Circus Festival of Massy (2009)
