by Atlason, R.S., Geirsson, O.P., Elisson, A., Unnthorsson, R.
Published in Geothermics (01.01.2015)

by GEIRSSON, O
Published in Laeknabladid (1960)

by GEIRSSON, O
Published in Laeknabladid (1964)

by GEIRSSON, O
Published in Laeknabladid (1957)

by Geirsson, O
Published in Nordisk lantbruksekonomisk tidskrift (1977)

by Geirsson, O, Oskarsson, M
Published in Islenzkar landbunadarrannsoknir. = Journal of agricultural research in Iceland (1979)