Moravcová, L., Pyšek, P., Pergl, J., Perglová, I., Gudžinskas, Z. Seed ecology of Heracleum mantegazzianum and H. sosnowskyi, two invasive species with different distributions in Europe. In: PYŠEK, P., COCK, M. J. W., NENTWIG, W., RAVN, H. P., eds. Ecology & Management of Giant Hogweed (Heracleum mantegazzianum). Wallingford: CAB International, 2007, s. 157-169. ISBN 978-1-84593-206-0.