@article{AUCMP_2005_46_Suppl_a11,
     author = {Hansen, Rahlf},
     title = {Kepler and the star of {Bethlehem}},
     journal = {Acta Universitatis Carolinae. Mathematica et Physica},
     pages = {115--125},
     year = {2005},
     volume = {46},
     number = {Suppl},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/AUCMP_2005_46_Suppl_a11/}
}