New light on the Middle Palaeolithic quartzite extraction site Troisdorf-Ravensberg - Pastoors, Andreas; Kehl, Martin; Prieto, Alejandro; Henselowski, Felix; King, Georgina; Peresani, Marco; Vaquero, Manuel; Claßen, Erich (Bonner Jahrbücher des LVR-Landesmuseums Bonn, 2022)