TY  - JOUR 
T1  - Cosmological implications of old galaxies at high redshifts
JO  - Brazilian Journal of Physics
A1  - Lima, J. A. S.
A1  - Alcaniz, J. S.
SN  - 0103-9733
UL  - 10.1590/S0103-97332001000400009
VL  - 31 
Y1  - 2001
PB  - Brasil 
ER  -