Marat M. Arslanov, S. Barry Cooper, Angsheng Li. There is No Low Maximal D.C.E. Degree. Math. Log. Q., 46(3):409-416, 2000. [doi]
@article{ArslanovCL00,
title = {There is No Low Maximal D.C.E. Degree},
author = {Marat M. Arslanov and S. Barry Cooper and Angsheng Li},
year = {2000},
doi = {10.1002/1521-3870(200008)46:3<409::AID-MALQ409>3.0.CO;2-P},
url = {http://dx.doi.org/10.1002/1521-3870(200008)46:3<409::AID-MALQ409>3.0.CO;2-P},
researchr = {https://researchr.org/publication/ArslanovCL00},
cites = {0},
citedby = {0},
journal = {Math. Log. Q.},
volume = {46},
number = {3},
pages = {409-416},
}