1. Anderson, R. F., 1948: Jour. Econ. Ent. V.41, N 4, 596–602.
2. Andres, J. M., undF. Saura, 1944: Buenos Aires Univ. Nac, Facult. de Agron. y Vet. Rev.II, 17–80.
3. Arndt, U., 1968: Holzforschung,22, N 4, 104–109.
4. Chararas, C., 1961: C. r. Acad. Sci.,252, N 4, 602–604.
5. Chararas, C., 1962: Canad. Entomologist,94, N 1, 77–92.