@article{Mueller:2011:GV,
    title   = "GeodesicViewer - A tool for exploring geodesics in the theory of relativity",
    journal = "Computer Physics Communications",
    volume  = "182",
    pages   = "1382--1383",
    year    = "2011",
    doi = "DOI: 10.1016/j.cpc.2011.02.007"
}