Fennel K.The generation of phytoplankton patchiness by mesoscale current patterns // Ocean Dynamics, 2001, v. 52, p. 58 - 70.
Fennel K.Convection and the timing of phytoplankton spring blooms in the Western Baltic Sea // Estuarine, Coastal and Shelf Science, 1999, v. 49, p. 113 - 128.