@article{1190150103,
author = {Wald, Kevin},
title = {On orbits of prompt and low computably enumerable sets},
journal = {J. Symbolic Logic},
volume = {67},
number = {1},
year = {2002},
pages = { 649-678},
language = {en},
url = {http://dml.mathdoc.fr/item/1190150103}
}
Wald, Kevin. On orbits of prompt and low computably enumerable sets. J. Symbolic Logic, Tome 67 (2002) no. 1, pp. 649-678. http://gdmltest.u-ga.fr/item/1190150103/