1. Om at finde den rette hormonbalance til stiklinger;Bertram;Gardner Tidene,1975
2. Factors affecting in vitro propagation of rose;Bressan;J. Am. Soc. Hortic. Sci.,1982
3. The effect of plant growth regulating chemicals on rose shoot development from basal and axillary buds;Carpenter;J. Am. Soc. Hortic. Sci.,1971
4. Rapid propagation of roses in vitro;Davies;Scientia Hortic.,1980
5. Eénstengelige rozen uit stek als materiaal voor onderzoek;De Stigter;Bedrijfson-twikkeling,1978