Alexander S. Kechris, David Marker, Ramez L. Sami. pi:::1:::::1:: Borel Sets. Journal of Symbolic Logic, 54(3):915-920, 1989.
@article{KechrisMS89,
title = {pi:::1:::::1:: Borel Sets},
author = {Alexander S. Kechris and David Marker and Ramez L. Sami},
year = {1989},
researchr = {https://researchr.org/publication/KechrisMS89},
cites = {0},
citedby = {0},
journal = {Journal of Symbolic Logic},
volume = {54},
number = {3},
pages = {915-920},
}