Marcone C, Gibb KS, Streten C, Schneider B (2004). "'Candidatus Phytoplasma spartii','Candidatus Phytoplasma rhamni' and 'Candidatus Phytoplasma allocasuarinae', respectively associated with spartium witches'-broom, buckthorn witches'-broom and allocasuarina yellows diseases". International Journal of Systematic and Evolutionary Microbiology. 54 (4): 1025–1029. doi:10.1099/ijs.0.02838-0. PMID15280265.
Doi, Yoji; Teranaka, Michiaki; Yora, Kiyoshi; Asuyama, Hidefumi (1967). "Mycoplasma- or PLT Group-like Microorganisms Found in the Phloem Elements of Plants Infected with Mulberry Dwarf, Potato Witches' Broom, Aster Yellows, or Paulownia Witches' Broom". Annals of the Phytopathological Society of Japan. 33 (4): 259–266. doi:10.3186/jjphytopath.33.259.
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Marcone C, Gibb KS, Streten C, Schneider B (2004). "'Candidatus Phytoplasma spartii','Candidatus Phytoplasma rhamni' and 'Candidatus Phytoplasma allocasuarinae', respectively associated with spartium witches'-broom, buckthorn witches'-broom and allocasuarina yellows diseases". International Journal of Systematic and Evolutionary Microbiology. 54 (4): 1025–1029. doi:10.1099/ijs.0.02838-0. PMID15280265.