1. Principles of Plant Breeding;Allard,1960
2. Breeding Ornamental Plants;Calloway,2000
3. Chromosome pairing, structural hybridity, and fragments in Rosa;Erlanson;Botanical Gazette,1933
4. Plant Speciation;Grant,1981
5. Differential polyploidy in the genus Rosa L;Hurst;Zeitschrift für Induktiv Abstammungs- und Vererbungslehre,1929