Guðrún Gísladóttir 1956(University of Iceland, Institute of Live and Environmental Sciences; University of iceland, Science Institute; Landgræðsla ríkisins, 11.2014)
Bigas, Harriet; Guðmundur Ingi Guðbrandsson 1977; Montanarella, Luca; Andrés Arnalds 1948; Soils, society & global change (2007 :Selfoss, Iceland)(Office for Official Publication of the European Communities, 2009)