Contreras, C. S.; Sahai, R.; Gil de Paz, A. Physical structure of the protoplanetary nebula CRL618. I. Optical long-slit spectroscopy and imaging. Astrophysical Journal. October 2002, 578 (1): 269–289. Bibcode:2002ApJ...578..269S. arXiv:astro-ph/0206200. doi:10.1086/342316.
doi.org
Westbrook, W. E.; Gezari, D. Y.; Hauser, M. G.; Werner, M. W.; Elias, J. H.; Neugebauer, G.; Lo, K. Y. One-millimeter continuum emission studies of four molecular clouds. Astrophysical Journal. 1976, 209: 94–101. Bibcode:1976ApJ...209...94W. doi:10.1086/154695.
Contreras, C. S.; Sahai, R.; Gil de Paz, A. Physical structure of the protoplanetary nebula CRL618. I. Optical long-slit spectroscopy and imaging. Astrophysical Journal. October 2002, 578 (1): 269–289. Bibcode:2002ApJ...578..269S. arXiv:astro-ph/0206200. doi:10.1086/342316.
harvard.edu
ui.adsabs.harvard.edu
Westbrook, W. E.; Gezari, D. Y.; Hauser, M. G.; Werner, M. W.; Elias, J. H.; Neugebauer, G.; Lo, K. Y. One-millimeter continuum emission studies of four molecular clouds. Astrophysical Journal. 1976, 209: 94–101. Bibcode:1976ApJ...209...94W. doi:10.1086/154695.
Contreras, C. S.; Sahai, R.; Gil de Paz, A. Physical structure of the protoplanetary nebula CRL618. I. Optical long-slit spectroscopy and imaging. Astrophysical Journal. October 2002, 578 (1): 269–289. Bibcode:2002ApJ...578..269S. arXiv:astro-ph/0206200. doi:10.1086/342316.