Authors: J-P Macquart; J X Prochaska; M McQuinn; K W Bannister; S Bhandari; C K Day; A T Deller; R D Ekers; C W James; L Marnoch; S Osłowski; C Phillips; S D Ryder; D R Scott; R M Shannon; N Tejos Journal: Nature Date: 2020-05-27 Impact factor: 49.962