@article{bwmeta1.element.desklight-46b2bd27-d25a-4eeb-8753-9571043e99a5,
author = {R. C. Freiwald and R. McDowell and E. F. McHugh, Jr.},
title = {Borel sets of exact class},
journal = {Colloquium Mathematicae},
volume = {42},
year = {1979},
pages = {187-191},
zbl = {0441.54019},
language = {en},
url = {http://dml.mathdoc.fr/item/bwmeta1.element.desklight-46b2bd27-d25a-4eeb-8753-9571043e99a5}
}
R. C. Freiwald; R. McDowell; E. F. McHugh, Jr. Borel sets of exact class. Colloquium Mathematicae, Tome 42 (1979) pp. 187-191. http://gdmltest.u-ga.fr/item/bwmeta1.element.desklight-46b2bd27-d25a-4eeb-8753-9571043e99a5/