@article{01184260,
title = {When is an equivalance relation classifiable.},
journal = {Documenta Mathematica},
year = {1998},
pages = {23-32},
zbl = {0899.04002},
language = {en},
url = {http://dml.mathdoc.fr/item/01184260}
}
Hjorth, Greg. When is an equivalance relation classifiable.. Documenta Mathematica, (1998), pp. 23-32. http://gdmltest.u-ga.fr/item/01184260/