Jeffrey Hemmes Douglas Thain Christian Poellabauer Cooperative Localization in GPS-Limited Urban Environments. 422-437 2009 ADHOCNETS https://doi.org/10.1007/978-3-642-11723-7_28 http://eudl.eu/doi/10.1007/978-3-642-11723-7_28 conf/adhocnets/2009 db/conf/adhocnets/adhocnets2009.html#HemmesTP09