Catalog of X-ray-selected extended galaxy clusters from the ROSAT All-Sky Survey (RXGCC) Weiwei Xu, Miriam E. Ramos-Ceja, Florian Pacaud, Thomas H. Reiprich and Thomas Erben A&A, 658 (2022) A59 Published online: 01 February 2022 DOI: 10.1051/0004-6361/202140908