Determination of limits on disc masses around six pulsars at 15 and 90 μmL. Koch-Miramond, M. Haas, E. Pantin, Ph. Podsiadlowski, T. Naylor and M. SauvageA&A, 387 1 (2002) 233-239DOI: https://doi.org/10.1051/0004-6361:20020386