All articles by K. Helgeland
2 articlesArticles in volume 13 (1959)
| New Pigments Derived from Vitamin B12 by Use of a Gram Negative Organism. Helgeland, K.; Jonson, J.; Laland, S. Pages: 2128-2128. DOI number: 10.3891/acta.chem.scand.13-2128a |
Articles in volume 17 (1963)
| Cobamides in Extracts from Areaobacter aerogenes. Helgeland, K.; Jonsen, J.; Laland, S.; Reistad, R. Pages: 897-897. DOI number: 10.3891/acta.chem.scand.17-0897a |