Leonards, P. E. G.
, Elmeros, M., Cofino, W. P., Conroy, J. W. H., Gutleb, A. C., Mason, C. F., Murk, A. J., Olsson, M., Smit, M. D., van Hattum, B. G. M.
, Madsen, A. B., Smit, M. D. (red.), Leonards, P. E. G. (red.), Murk, A. J. (red.), de Jongh, A. W. J. J. (red.) & van Hattum, B. G. M. (red.) (1996).
Toxic PCBs in European otter populations in relation to biological factors and health status. I M. D. Smit, P. E. G. Leonards, A. J. Murk, A. W. J. J. de Jongh & B. G. M. van Hattum (red.),
Development of otter-based quality objectives for PCBs (s. 51-69). Institute for Environmental Studies, Amsterdam.