Andrzej Ehrenfeucht, Grzegorz Rozenberg, Keijo Ruohonen. A Morphic Representation of Complements of Recursively Enumerable Sets. Journal of the ACM, 28(4):706-714, 1981. [doi]
@article{EhrenfeuchtRR81,
title = {A Morphic Representation of Complements of Recursively Enumerable Sets},
author = {Andrzej Ehrenfeucht and Grzegorz Rozenberg and Keijo Ruohonen},
year = {1981},
doi = {10.1145/322276.322282},
url = {http://doi.acm.org/10.1145/322276.322282},
researchr = {https://researchr.org/publication/EhrenfeuchtRR81},
cites = {0},
citedby = {0},
journal = {Journal of the ACM},
volume = {28},
number = {4},
pages = {706-714},
}