1.
Acta cient. venez
;
35(3/4): 288-92, 1984.
Article
in Spanish
| LILACS
| ID: lil-23692
2.
Acta cient. venez
;
33(3): 258-62, 1982.
Article
in English
| LILACS
| ID: lil-12298
3.
Acta cient. venez
;
33(3): 263-8, 1982.
Article
in Spanish
| LILACS
| ID: lil-12299