@article{1183739301,
author = {Harrington, Leo A. and Kechris, Alexander S.},
title = {On Characterizing Spector Classes},
journal = {J. Symbolic Logic},
volume = {40},
number = {1},
year = {1975},
pages = { 19-24},
language = {en},
url = {http://dml.mathdoc.fr/item/1183739301}
}
Harrington, Leo A.; Kechris, Alexander S. On Characterizing Spector Classes. J. Symbolic Logic, Tome 40 (1975) no. 1, pp. 19-24. http://gdmltest.u-ga.fr/item/1183739301/