@conference {130,
	title = {Inter-system Bias: Stability and impact on multi-constellation positioning},
	booktitle = {Metrology for Aerospace (MetroAeroSpace), 2015 IEEE},
	year = {2015},
	month = {June},
	keywords = {Accuracy, estimation process, estimation theory, Extraterrestrial measurements, Galileo-to-GPS time offset, GGTO, global navigation satellite systems, Global Positioning System, GNSS, independent time scales, intersystem bias determination, intersystem time offset determination, multiconstellation positioning performance improvement, multiconstellation receivers, pseudo-measurement, radio receivers, Receivers, Satellites},
	doi = {10.1109/MetroAeroSpace.2015.7180635},
	author = {Gioia, C. and Gaglione, S. and Borio, D.}
}
