@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/