Mermilliod, J.-C. (1986). «Compilation of Eggen's UBV data, transformed to UBV (unpublished)». Catalogue of Eggen's UBV data. Bibcode:1986EgUBV........0M.
Pizzolato, N.; Maggio, A.; Sciortino, S. (September 2000), «Evolution of X-ray activity of 1-3 Msun late-type stars in early post-main-sequence phases», Astronomy and Astrophysics361: 614–628, Bibcode:2000A&A...361..614P
Malagnini, M. L.; Morossi, C. (November 1990), «Accurate absolute luminosities, effective temperaturs, radii, masses and surface gravities for a selected sample of field stars», Astronomy and Astrophysics Supplement Series85 (3): 1015–1019, Bibcode:1990A&AS...85.1015M