@article{BSL4_3_Rauszer_Sabalski,
author = {Cecylia RAUSZER and Bogdan SABALSKI},
title = {Notes on the Rasiowa–Sikorski Lemma},
journal = {Bulletin of the Section of Logic},
volume = {4},
number = {3},
year = {1975},
pages = {109--114}
}