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2. Ahokas H 1997 Hybrids, partial hybrids and monoploids from interspecific crosses of the Triticeae species attained by in vitro embryo culture, 1-15
3. Coexistence and hybridization of Leymus mollis and L. arenarius in Greenland, and demarcation of the species by endospermal prolamins, leymins;Ahokas;Nord. J. Bot.,1991
4. Late Weichselian flora and vegetation of Andoya, Northern Norway - macrofossil (seed and fruit) evidence from Nedre AErasvatn;Aim;Nord. J. Bot.,1991
5. Wide-hybrids between wheat and lymegrass: breeding and agricultural potential;Anamthawat-Jónsson;Icelandic Agric. Sci.,1996