@article{article532219f1,
title   = {Calcium bioavailability of raw and extruded amaranth grains},
author = {Ferreira, Tania Aparecida and Arêas, José Alfredo Gomes},
year = {2010},
doi = {10.1590/S0101-20612010000200037},
journal   = {Ciência e Tecnologia de Alimentos}
}