Jökull - 01.12.1984, Page 129

and for reading the manuscript. Dr. C. Hjort and
Dr. H. Norðdahl for valuable discussions and
critical reading of the manuscript. Cand. Real. G.
Sigbjarnarson for bibliographical research assist-
ance and for useful comments on the manuscript.
Dr. K.J. Albertsson for correcting my English and
for valuable discussions.
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