1. Barclay, I. R. (1976). A study of the genetics and mechanism of genome and chromosome loss in cereals. PhD thesis, Cambridge.
2. Revision of the Asiatic taxa of Hordeum sect;Bothmer;Stenostachys. Bot. Tidsskr.,1979
3. Pre-breeding and wide hybridization in barley;Bothmer;Genetika (Beograd),1983
4. Origin, taxonomy and related species;Bothmer,1985
5. Interspecific crosses in Hordeum (Poaceae);Bothmer;Plant Syst. Evol.,1986