@article{doi:10.1001/archinternmed.2011.1349,
title = {DUsk sky clouds, berwyn, pennsylvania},
journal = {Archives of Internal Medicine},
volume = {172},
number = {5},
pages = {430},
year = {2012},
doi = {10.1001/archinternmed.2011.1349},
URL = { + http://dx.doi.org/10.1001/archinternmed.2011.1349},
eprint = {/data/Journals/INTEMED/22610/iir110008-1-1_430_430.pdf}
}