@other{https://resolver.caltech.edu/CaltechETD:etd-08252008-153611, title = "Compact infrared sources : NGC 7538 and the galactic center", url = "https://resolver.caltech.edu/CaltechETD:etd-08252008-153611", id = "record", doi = "10.7907/YGRP-NJ17" }