1. Chromosome studies in Rubus;Einset;Gentes Herb.,1947
2. The genesis of the European blackberry flora;Gustafsson;Lunds Univ. Årssk. N. F. Avd.,1943
3. Apomixis in higher plants. Part 1. The mechanism of apomixis;Gustafsson;Lunds Univ. Årssk. N. F. Avd.,1946
4. Apomixis in higher plants. Part 3. Biotype and species formation;Gustafsson;Lunds Univ. Årssk. N. F. Avd.,1947
5. Treatment of blackberry seed to secure first year germination;Heit;Proc. Amer. Soc. Hort. Sci.,1950