Nitrogen abundance in the X-ray halos of clusters and groups of galaxiesJunjie Mao, Jelle de Plaa, Jelle S. Kaastra, Ciro Pinto, Liyi Gu, François Mernier, Hong-Liang Yan, Yu-Ying Zhang and Hiroki AkamatsuA&A, 621 (2019) A9DOI: https://doi.org/10.1051/0004-6361/201730931
