| LC control no. | n 92054166 |
|---|---|
| Descriptive conventions | rda |
| Personal name heading | Þorsteinn I. Sigfússon |
| Variant(s) | Sigfússon, Þorsteinn I. |
| Birth date | 19540604 |
| Found in | Í hlutarins eðli, c1987: t.p. (Þorsteinn I. Sigfússon, Raunvísindastofnun Háskólans) Þekkingin beisluð, 2014: title page (Þorsteinn I. Sigfússon) page 9 (born 4 June 1954) |
| Associated language | ice |
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