Dragani T.A. ea, 1991
Dragani T.A., Manentig G., Colombo B.M., Falvella S., Gariboldy M., Pierotti M.A., Dello-Porta G. Incidence of mutations at codon 61 of the Ha-ras gene in liver tumor of mice genetically susceptible and resistant to hepatocarcinogenesis. // Oncogene, 1991, v. 6, N 2, pp. 333-338.