1. Variation and selection for seed-set in tetraploid rye;Aastveit;Hereditas,1968
2. Aastveit , K. 1984 Materialer, forsøg og resultater i autotetraploid høstrug Seminar at the Agricultural University of Norway 1984
3. Breeding of tetraploid rye in the Netherlands. 1. Methods and cytological investigations;Bremer;Euphytica,1954
4. Number of accessory chromosomes and protein content in rye seed;Fröst;Hereditas,1963
5. The competition between diploid, tetraploid and aneuploid rye;Hagberg;Hereditas,1959