Robert O'dell, Mark J McCaughrean (Maio de 1996). "Direct Imaging of Circumstellar Disks in the Orion Nebula". Astronomical Journal111. Bibcode:1996AJ....111.1977M. doi:10.1086/117934.
Robert O'dell, Mark J McCaughrean (Maio de 1996). "Direct Imaging of Circumstellar Disks in the Orion Nebula". Astronomical Journal111. Bibcode:1996AJ....111.1977M. doi:10.1086/117934.