Michael A. Warren. Coalgebras in a category of classes. Annals of Pure and Applied Logic, 146(1):60-71, 2007. [doi]
@article{Warren07,
title = {Coalgebras in a category of classes},
author = {Michael A. Warren},
year = {2007},
doi = {10.1016/j.apal.2006.12.003},
url = {http://dx.doi.org/10.1016/j.apal.2006.12.003},
researchr = {https://researchr.org/publication/Warren07},
cites = {0},
citedby = {0},
journal = {Annals of Pure and Applied Logic},
volume = {146},
number = {1},
pages = {60-71},
}