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Torsten Eriksson; Malin S. Hibbs; Anne D. Yoder; Charles F. Delwiche & Michael J. Donoghue (2003). "The Phylogeny of Rosoideae (Rosaceae) Based on Sequences of the Internal Transcribed Spacers (ITS) of Nuclear Ribosomal DNA and the trnL/F Region of Chloroplast DNA". Int. J. Plant Sci. 164 (2): 197–211. doi:10.1086/346163. S2CID22378156.