Rodney G. Downey, Denis R. Hirschfeldt, André Nies. Randomness, Computability, and Density. SIAM Journal on Computing, 31(4):1169-1183, 2002. [doi]
@article{DowneyHN02,
title = {Randomness, Computability, and Density},
author = {Rodney G. Downey and Denis R. Hirschfeldt and André Nies},
year = {2002},
url = {http://epubs.siam.org/sam-bin/dbq/article/37693},
researchr = {https://researchr.org/publication/DowneyHN02},
cites = {0},
citedby = {0},
journal = {SIAM Journal on Computing},
volume = {31},
number = {4},
pages = {1169-1183},
}