@article{BMMS_2008_31_2_a0,
     author = {Marina Borovikova and Zair Ibragimov},
     title = {Convex {Bodies} of {Constant} {Width} and the {Apollonian} {Metric}},
     journal = {Bulletin of the Malaysian Mathematical Society},
     year = {2008},
     volume = {31},
     number = {2},
     url = {http://geodesic.mathdoc.fr/item/BMMS_2008_31_2_a0/}
}