Berthold, Peter Vogelwarte Radolfzell, Radolfzell, Max Planck Institut für Ornithologie, Max Planck Society; Emeritus, Seewiesen, Max Planck Institut für Ornithologie, Max Planck Society;
Berthold, P. (1986). Wintering in a partially migratory Mediterranean blackcap (Sylvia atricapilla) population: Strategy, control and unanswered questions. Supplemento alle Ricerche di Biologia della Selvaggina, 10, 33-45.