Yll, Errikarta-Imanol; Pérez-Obiol, Ramon P; Pantaleon-Cano, José; Roure, Joan-Maria (1997): Palynological evidence for climatic change and human activity during the Holocene on Minorca (Balearic Islands). Quaternary Research, 48(3), 339-347, doi:10.1006/qres.1997.1925