@article{01225045,
title = {The separated extensional Chu category.},
journal = {Theory and Applications of Categories [electronic only]},
volume = {4},
year = {1998},
pages = {137-147},
zbl = {0907.18003},
language = {en},
url = {http://dml.mathdoc.fr/item/01225045}
}
Barr, Michael. The separated extensional Chu category.. Theory and Applications of Categories [electronic only], Tome 4 (1998) pp. 137-147. http://gdmltest.u-ga.fr/item/01225045/