About the importance of fine-mesh sieving, stratigraphical and spatial studies for the interpretation of the faunal remains at Ajvide, Eksta parish, and other neolithic dwelling sites on Gotland - Lindqvist, Christian 1948-2006 (Remote sensing : 1. Applied techniques for the study of cultural resources and the localization, identification and documentation of sub-surface prehistoric remains in Swedish archaeology., 1997)