Jeppesen, E., Kristensen, P., Jensen, J. P.
, Søndergaard, M., Mortensen, E.
& Lauridsen, T. L. (1991).
Recovery resilience following a reduction in external phosphorus loading of shallow, eutrophic Danish lakes: duration, regulating factors and methods for overcoming resilience.
Memorie dell'Istituto Italiano di Idrobiologia,
48, 127-148.