@article{doi:10.1001/jama.1989.03430180077019,
author = {Staub B},
title = {The purpose of survival: Is it cognitive development?},
journal = {JAMA},
volume = {262},
number = {18},
pages = {2539},
year = {1989},
doi = {10.1001/jama.1989.03430180077019},
URL = { + http://dx.doi.org/10.1001/jama.1989.03430180077019},
eprint = {/data/Journals/JAMA/9204/jama_262_18_019.pdf}
}