David B. Holgate. The pullback closure operator and generalisations of perfectness. Applied Categorical Structures, 4(1):107-120, 1996. [doi]
@article{Holgate96,
title = {The pullback closure operator and generalisations of perfectness},
author = {David B. Holgate},
year = {1996},
doi = {10.1007/BF00124119},
url = {http://dx.doi.org/10.1007/BF00124119},
researchr = {https://researchr.org/publication/Holgate96},
cites = {0},
citedby = {0},
journal = {Applied Categorical Structures},
volume = {4},
number = {1},
pages = {107-120},
}