Doi Y. ea, 1967
Doi Y., Terenaka M., Yora K., Asuyama H. 1967. Mycoplasma or PLT group- like microorganisms found in the phloem elements of plant infected with Mulberry dwarf, potato withes-broom, aster yellows and Poulownia witches-broom // Ann.Phytopathol.Soc.Jap.Vol.33, N 4.P.259-266.
