Home News Press Releases MPIE material testers are the best in NRW Publications of Robert O. Ritchie All genres Journal Article (1) Journal Article (1) 1. Journal Article George, E. P.; Raabe, D.; Ritchie, R. O.: High-entropy alloys. Nature Reviews Materials 4, pp. 515 - 534 (2019) MPG.PuRe DOI