The NH2D/NH3 ratio toward pre-protostellar cores around the UC region in IRAS 20293+3952G. Busquet, A. Palau, R. Estalella, J. M. Girart, Á. Sánchez-Monge, S. Viti, P. T. P. Ho and Q. ZhangA&A, 517 (2010) L6DOI: https://doi.org/10.1051/0004-6361/201014866
region in IRAS 20293+3952 region in IRAS 20293+3952