P. Thammakijjawat, N. Thaveechai, W. Kositratana, J. Chunwongse, R. D. Frederick, and N. W. Schaad, “Genetic Analysis of Ralstonia solanacearum Strains from Different Hosts in Thailand Using PCR-Restriction Fragment Length Polymorphism”, Agr. Nat. Resour., vol. 35, no. 4, pp. 397–408, Dec. 2001.