Barrado y Navascues, D; Stauffer, J.R.; Jayawardhana, R. (2002). “Spectroscopy of Very Low Mass Stars and Brown Dwarfs in IC 2391: Lithium Depletion and Hα Emission”. Astrophysical Journal. 614 (1): 386–397. arXiv:astro-ph/0406436. Bibcode:2004ApJ...614..386B. doi:10.1086/423485.
Barrado y Navascues, D; Stauffer, J.R.; Jayawardhana, R. (2002). “Spectroscopy of Very Low Mass Stars and Brown Dwarfs in IC 2391: Lithium Depletion and Hα Emission”. Astrophysical Journal. 614 (1): 386–397. arXiv:astro-ph/0406436. Bibcode:2004ApJ...614..386B. doi:10.1086/423485.
Stauffer, J.R.; và đồng nghiệp (1997). “Rotational Velocities and Chromospheric/Coronal Activity of Low-Mass Stars in the Young Open Clusters IC 2391 and IC 2602”. Astrophysical Journal. 479 (2): 776. Bibcode:1997ApJ...479..776S. doi:10.1086/303930.,
Barrado y Navascues, D; Stauffer, J.R.; Jayawardhana, R. (2002). “Spectroscopy of Very Low Mass Stars and Brown Dwarfs in IC 2391: Lithium Depletion and Hα Emission”. Astrophysical Journal. 614 (1): 386–397. arXiv:astro-ph/0406436. Bibcode:2004ApJ...614..386B. doi:10.1086/423485.
Stauffer, J.R.; và đồng nghiệp (1997). “Rotational Velocities and Chromospheric/Coronal Activity of Low-Mass Stars in the Young Open Clusters IC 2391 and IC 2602”. Astrophysical Journal. 479 (2): 776. Bibcode:1997ApJ...479..776S. doi:10.1086/303930.,