Chen, Chen [P:(DE-He78)b3928caa1d0865f09ffc5cf5e7683da6] ; Stock, Christian [P:(DE-He78)908880209a64ea539ae8dc5fdb7e0a91] ; Hoffmeister, Michael [P:(DE-He78)6c5d058b7552d071a7fa4c5e943fff0f] ; Brenner, Hermann [P:(DE-He78)90d5535ff896e70eed81f4a4f6f22ae2]