@book{621,
	author = {Regia Societas Scientiarum Danica},
	title = {Tychonis Brahe Dani, die XXIV Octobris A.D. MDCI defuncti, operum primitias De nova stella},
	publisher = {Regia Societas Scientiarum Danica},
	year = {1901},
	address = {Hauniae}
}