TY  - JOUR 
T1  - Why it is difficult to control Biomphalaria glabrata, the vector snail of schistosomiasis
JO  - Memórias do Instituto Oswaldo Cruz
A1  - Jurberg, Pedro
SN  - 0074-0276
UL  - 10.1590/S0074-02761987000800035
VL  - 82 
Y1  - 1987
PB  - Brazil 
ER  -