Acta Astronomica
Acta Astronomica > 2020 > Vol. 70, No. 1 > 75--85
Acta Astronomica > 2020 > Vol. 70, No. 1 > 33--52
Acta Astronomica > 2020 > Vol. 70, No. 1 > 1--18
Acta Astronomica > 2020 > Vol. 70, No. 1 > 19--32
Acta Astronomica > 2020 > Vol. 70, No. 1 > 53--74