@article{article328a9e59,
title   = {Sleep duration preferences in 4 to 14 month old babies},
author = {Menna Barreto, Luiz Silveira and Montagner, H and Benedito-Silva, Ana Amélia and Marques, Nélson and Soussignan, R and Koch, P},
year = {1990},
journal   = {Progress in Clinical and Biological Research. Chronobiology}
}