@book{60627,
	author = {Valls-Gabaud, David and Hearnshaw, John},
	title = {Under one sky : the IAU Centenary Symposium : proceedings of the 349th Symposium of the International Astronomical Union held in Vienna, Austria 28-31 August, 2018},
	publisher = {Cambridge University Press},
	year = {2019},
	series = {IAU Symposium proceedings series},
	address = {Cambridge}
}