@article{TAC_2006_17_a0,
     author = {Michael Barr},
     title = {The {Chu} construction: history of an idea},
     journal = {Theory and applications of categories},
     pages = {10--16},
     publisher = {mathdoc},
     volume = {17},
     year = {2006},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/TAC_2006_17_a0/}
}