TY  - JOUR 
T1  - Research on eggshell structure and quality: an historical overview
JO  - Brazilian Journal of Poultry Science
A1  - Hunton, P
SN  - 1516-635X
UL  - 10.1590/S1516-635X2005000200001
VL  - 7 
Y1  - 2005
PB  - Brasil 
ER  -