Research areas

  1. Published

    Progress made in the botanical exploration of Africa: Ethiopia. / Friis, Ib.

    In: Boissiera, Vol. 24, 1976, p. 599-599.

    Research output: Contribution to journalJournal articleResearch

  2. Published

    Studies in the genus Haemanthus (Amaryllidaceae) IV. Division of the genus into Haemanthus s. str. and Scadoxus, with notes on Haemanthus s. str. / Friis, Ib; Nordal, Inger.

    In: Norwegian Journal of Botany, Vol. 23, 1976, p. 63-77.

    Research output: Contribution to journalJournal articleResearchpeer-review

  3. Published

    Thermodynamic temperature scale derived from measurements of 3He latent heat. / Rasmussen, Finn Berg; Halperin, W.P.; Archie, C.N.; Richardson, R.C.

    In: Physical Review Letters, Vol. 34, No. 12, 24.03.1975, p. 718-721.

    Research output: Contribution to journalJournal articleResearchpeer-review

  4. Published

    Linociera giordanoi (Oleaceae) - the correct name for a widespread African species. / Friis, Ib.

    In: Kew Bulletin, Vol. 30, 1975, p. 16-16.

    Research output: Contribution to journalJournal articleResearchpeer-review

  5. Published

    The giant species of Cirsium (Asteraceae) in S Ethiopia. / Friis, Ib.

    In: Norwegian Journal of Botany, Vol. 22, 1975, p. 201 - 207.

    Research output: Contribution to journalJournal articleResearchpeer-review

  6. Published

    The two alternative systems of nomenclature proposed and used for orchids by Du Petit-Thouars. / Friis, Ib; Rasmussen, Finn N.

    In: Taxon, Vol. 24, 1975, p. 307-318.

    Research output: Contribution to journalJournal articleResearchpeer-review

  7. Published

    Observation of nuclear magnetic order in solid 3He. / Halperin, W.P.; Archie, C.N.; Rasmussen, Finn Berg; Buhrman, R.A.; Richardson, R.C.

    In: Physical Review Letters, Vol. 32, No. 17, 01.01.1974, p. 927-930.

    Research output: Contribution to journalJournal articleResearchpeer-review

  8. Published

    Dorstenia soerensenii sp. nov. (Moraceae) from SW Ethiopia, and related species. / Friis, Ib.

    In: Norwegian Journal of Botany, Vol. 21, 1974, p. 101-110.

    Research output: Contribution to journalJournal articleResearchpeer-review

  9. Published

    Studies in the genus Haemanthus (Amaryllidaceae) III. A revision of the sections Gyaxis and Nerissa. / Friis, Ib; Bjørnstad, Inger.

    In: Norwegian Journal of Botany, Vol. 21, 1974, p. 243-275.

    Research output: Contribution to journalJournal articleResearchpeer-review

  10. Published

    Studies in the genus Haemanthus (Amaryllidaceae) I. The infrageneric taxonomy. / Friis, Ib; Bjørnstad, Inger.

    In: Norwegian Journal of Botany, Vol. 19, 1972, p. 187-206.

    Research output: Contribution to journalJournal articleResearchpeer-review