Gadzira shanduro yakaoma kunzwisisa yemutsara uyu Yakagadzirwa naSvein Rosseland, uye yakavakwa mukubatana naKnut Strøm Gundersen (1909 - 1983) weNorway yekutengesa chiridzwa mugadziri Gundersen & Løken.
Zvechokwadi, shanduro yakaoma zvikuru yemutsara uyu ndeiyi "Yakarongwa naSvein Rosseland, yakavakwa naGundersen & Løken, mugadziri wezviridzwa zvokutengeserana weNorway, uye yakaiswa paimba yokutanga yeInstitute for Theoretic Astrophysics paYunivhesiti yeOslo".