@book{21958,
	author = {Jin, Wenjing., ed. and Perryman, Michael A.C., ed.},
	title = {A giant step: from milli- to micro- arcsecond astrometry},
	publisher = {Cambridge University Press                                  },
	year = {2008},
	series = {IAU Symposium; no. 248},
	address = {Cambridge                                                   },
	url = {https://www.cambridge.org/core/journals/proceedings-of-the-international-astronomical-union/issue/2E1B91869F34EEDEB2E825807655D332}
}