Statistical Studies of the Anisotropy of the Pinning Mechanism in YBaCuO Films Deposited on Polycrystalline YSZ Substrates O. Sarrhini, J. Baixeras and A. Kreisler J. Phys. IV France, 06 C3 (1996) C3-315-C3-320 DOI: 10.1051/jp4:1996348