1. Nemeth M, In Virus, mycoplasma and rickettsia diseases of fruit trees, (M Nijhoff, W Junk, Editors), Kluwer Academic Publishers Group, Boston, (1986) p 840.
2. Nickel O, Fajardo TVM, Jelkmann W & Kuhn GB, Fitopatologia Brasileira, 26 (2001) 655.
3. James D, J Virol Methods, 63 (1999) 1.
4. Kinard GR, Scott SW & Barnett OW, Plant Dis, 60 (1996) 616.
5. Shim HK, Min YJ, Hong SY, Kwon MS, Kim DH, Kim HR, Choi YM, Lee SC & Yang JM, Molecules and Cells, 16 (2004) 192.