@article{SIGMA_2015_11_a7,
     author = {Josef Schicho and Matteo Gallet},
     title = {Ambiguities in {a~Problem} in {Planar} {Geodesy}},
     journal = {Symmetry, integrability and geometry: methods and applications},
     year = {2015},
     volume = {11},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/SIGMA_2015_11_a7/}
}