The article introducing the UCC is Perren et al. (2023) . To cite the catalogue or its associated tool fastMP, please use the following Bibtex:
@ARTICLE{Perren_2023,
author = {{Perren}, Gabriel I. and {Pera}, Mar{\'\i}a S. and {Navone}, Hugo D. and {V{\'a}zquez}, Rub{\'e}n A.},
title = "{The Unified Cluster Catalogue: towards a comprehensive and homogeneous data base of stellar clusters}",
journal = {\mnras},
keywords = {methods: data analysis, catalogues, open clusters and associations: general, Astrophysics - Astrophysics of Galaxies},
year = 2023,
month = dec,
volume = {526},
number = {3},
pages = {4107-4119},
doi = {10.1093/mnras/stad2826},
adsurl = {https://ui.adsabs.harvard.edu/abs/2023MNRAS.526.4107P}
}