TY  - JOUR 
T1  - Pitfalls of artificial grouping and stratification of scientific journals based on their Impact Factor: a case study in Brazilian Zoology
JO  - Zoologia (Curitiba)
A1  - Machado, Fábio A.
A1  - Zaher, Hussam
SN  - 1984-4670
UL  - 10.1590/S1984-46702010000400002
VL  - 27 
Y1  - 2010
PB  - Brasil 
ER  -