Systems with quenched disorder 

"Numerical study of random superconductors"

N. Akino, C. Giardina, J.M. Kosterlitz, N.V. Priezjev, Physica C: Superconductivity and its Applications 408, 484-486 (2004)

"Strongly screened vortex lattice model with disorder"

C. Giardina, N.V. Priezjev, J.M. Kosterlitz, preprint: cond-mat/0202487