D.B.Guenther,P.Demarque,D.Buzasi,J.Catanzaritei inni.Evolutionary Model and Oscillation Frequencies for α Ursae Majoris: A Comparison with Observations.„The Astrophysical Journal”.530(1),s.L45–L48,2000. DOI: 10.1086/312473. PMID: 10642202. Bibcode:2000ApJ...530L..45G.(ang.).
D.B.Guenther,P.Demarque,D.Buzasi,J.Catanzaritei inni.Evolutionary Model and Oscillation Frequencies for α Ursae Majoris: A Comparison with Observations.„The Astrophysical Journal”.530(1),s.L45–L48,2000. DOI: 10.1086/312473. PMID: 10642202. Bibcode:2000ApJ...530L..45G.(ang.).
D.B.Guenther,P.Demarque,D.Buzasi,J.Catanzaritei inni.Evolutionary Model and Oscillation Frequencies for α Ursae Majoris: A Comparison with Observations.„The Astrophysical Journal”.530(1),s.L45–L48,2000. DOI: 10.1086/312473. PMID: 10642202. Bibcode:2000ApJ...530L..45G.(ang.).