TY  - JOUR 
T1  - Isolation and characterization of thirteen new strains of Bacillus sphaericus from Colombia toxic to Culex quinquefasciatus larvae
JO  - Memórias do Instituto Oswaldo Cruz
A1  - Orduz, Sergio
A1  - Restrepo, Nora
A1  - Diaz, Thais
A1  - Rojas, William
SN  - 0074-0276
UL  - 10.1590/S0074-02761993000400023
VL  - 88 
Y1  - 1993
PB  - Brasil 
ER  -