Research areas

  1. Published

    The spelling of Pehr Forsskål's family name

    Friis, Ib & Thulin, M., 1984, In: Taxon. 33, p. 668-672

    Research output: Contribution to journalJournal articleResearchpeer-review

  2. Published

    Validation of names of new species by reference to previously published descriptions of new genera without valid species names

    Friis, Ib, 1984, In: Taxon. 33, p. 301-308

    Research output: Contribution to journalJournal articleResearchpeer-review

  3. Published

    Validity of names published by Forsskål and Aublet

    Friis, Ib, Brummitt, R. K., Hepper, F. N., Jeffrey, C., Taylor, N. P., Verdcourt, B., Howard, R. A. & Nicolson, D. H., 1984, In: Taxon. 33, p. 495-496

    Research output: Contribution to journalJournal articleResearchpeer-review

  4. Published

    A synopsis of the genus Obetia (Urticaceae)

    Friis, Ib, 1983, In: Kew Bulletin. 38, p. 221-228

    Research output: Contribution to journalJournal articleResearchpeer-review

  5. Published

    Myriader af liv [regnskoven]

    Friis, Ib, 1983, In: Levende Natur - Tidsskrift for international naturbevarelse. 3, p. 3-7

    Research output: Contribution to journalJournal articleCommunication

  6. Published

    Note on the botanical collections of Pehr Forsskål

    Friis, Ib, 1983, In: Kew Bulletin. 38, p. 457-467

    Research output: Contribution to journalJournal articleResearchpeer-review

  7. Published

    Phytogeography of the tropical north-East African mountains (Ethiopia, Djibouti, Somalia)

    Friis, Ib, 1983, In: Bothalia. 14, p. 525-532

    Research output: Contribution to journalJournal articleResearchpeer-review

  8. Published

    The acaulescent and succulent species of Dorstenia sect. Kosaria (Moraceae) from NE tropical Africa and Arabia

    Friis, Ib, 1983, In: Nordic Journal of Botany. 3, p. 533-538

    Research output: Contribution to journalJournal articleResearchpeer-review

  9. Published

    Derivations and their relation to perturbations of operator algebras

    Christensen, Erik, 1982, American Mathematical Society Symposia . Vol. 38. p. 261 - 273 13 p.

    Research output: Chapter in Book/Report/Conference proceedingArticle in proceedingsResearchpeer-review

  10. Published

    Extensions of derivations II

    Christensen, Erik, 1982, In: Mathematica Scandinavica. 50, p. 111 -122 12 p.

    Research output: Contribution to journalJournal articleResearchpeer-review

  11. Published

    Name changes for well known species of Boehmeria (Urticaceae)

    Friis, Ib & Marais, W., 1982, In: Kew Bulletin. 37, p. 163-163

    Research output: Contribution to journalJournal articleResearchpeer-review

  12. Published

    New taxa from the Imatong Mountains, S. Sudan

    Friis, Ib & Vollesen, K., 1982, In: Kew Bulletin. 38, p. 221-228

    Research output: Contribution to journalJournal articleResearchpeer-review

  13. Published

    Studies in the flora and vegetation of SW Ethiopia

    Friis, Ib, Rasmussen, Finn N. & Vollesen, K., 1982, In: Opera Botanica. 63, p. 1-70

    Research output: Contribution to journalJournal articleResearchpeer-review

  14. Published

    The identity of Rumicicarpus ramosissimus Chiov. (Tiliaceae)

    Friis, Ib, 1982, In: Nordic Journal of Botany. 2, p. 111-113

    Research output: Contribution to journalJournal articleResearchpeer-review

  15. Published

    The identity of Urera longifolia and U. oligoloba, a supplement to Chew's monograph of Laportea (Urticaceae)

    Friis, Ib, 1982, In: Nordic Journal of Botany. 2, p. 231-233

    Research output: Contribution to journalJournal articleResearchpeer-review

  16. Published

    The typification of Forsskaolea viridis Ehrenb. ex Webb (Urticaceae)

    Friis, Ib, 1982, In: Taxon. 31, p. 727-729

    Research output: Contribution to journalJournal articleResearchpeer-review

  17. Published

    What causes the first-order magnetic transition in solid 3He

    Bak, P. & Rasmussen, Finn Berg, 1 Sep 1981, In: Physica B: Condensed Matter. 108, 1-3, p. 849-51 3 p.

    Research output: Contribution to journalJournal articleResearchpeer-review

  18. Published

    Experiment on the melting pressure of spin polarized He3

    Chapellier, M., Olsen, Malte & Rasmussen, Finn Berg, 1 Aug 1981, In: Physica B: Condensed Matter. 107, 1-3, p. 31-32 2 p.

    Research output: Contribution to journalJournal articleResearch

  19. Published

    Fluctuation-induced first-order nuclear magnetic transition in solid 3He

    Bak, P. & Rasmussen, Finn Berg, 19 May 1981, In: Physical Review B. Condensed Matter and Materials Physics. 23, 9, p. 4538-4540 3 p.

    Research output: Contribution to journalJournal articleResearchpeer-review

  20. Published

    Zero-pressure organic superconductor: Di- (Tetramethyltetraselenafulvalenium)-perchlorate [(TMTSF)2ClO4]

    Bechgaard, K., Carneiro, K., Olsen, Malte, Jacobsen, C. S. & Rasmussen, Finn Berg, 30 Mar 1981, In: Physical Review Letters. 46, 13, p. 852-855 4 p.

    Research output: Contribution to journalJournal articleResearchpeer-review

  21. Published

    Superconductivity in (TMTSF)2 ClO4 at zero pressure

    Bechgaard, K., Carneiro, K., Jacobsen, C. S., Olsen, Malte, Rasmussen, Finn Berg & Rindorf, G., 1 Feb 1981, In: J. Molecul. Crystals and Liquid Crystals. 79, p. 271-275 5 p.

    Research output: Contribution to journalJournal articleResearchpeer-review

  22. Published

    A note on effective publication

    Friis, Ib & Dahlgren, R., 1981, In: Taxon. 30, p. 499-501

    Research output: Contribution to journalJournal articleResearchpeer-review

  23. Published

    A synopsis of the genus Girardinia Gaud. (Urticaceae)

    Friis, Ib, 1981, In: Kew Bulletin. 36, p. 143-157

    Research output: Contribution to journalJournal articleResearchpeer-review

  24. Published

    Notes on Somalian Sapindaceae

    Friis, Ib, 1981, In: Kew Bulletin. 36, p. 139-141

    Research output: Contribution to journalJournal articleResearchpeer-review

  25. Published

    On non-selfadjoint representations of C*-algebras

    Christensen, Erik, 1981, In: American Journal of Mathematics. 103, p. 817 - 833 17 p.

    Research output: Contribution to journalJournal articleResearchpeer-review