@article{articleee2055bd,
title   = {Animal model estimation of genetic parameters and response to selection for litter size and weight, growth and backfat in closed seedstock populations of large white and landrace swine},
author = {Ferraz, José Bento Sterman and Johnson, R K},
year = {1993},
doi = {10.2527/1993.714850x},
journal   = {Journal of Animal Science}
}