The following publications are possibly variants of this publication:
- Splitting and Nonsplitting, II: A Low::2:: C.E. Degree above Which 0 Is Not SplittableS. Barry Cooper, Angsheng Li. JSYML, 67(4):1391-1430, 2002.
- Total Degrees and Nonsplitting Properties of Enumeration DegreesMarat M. Arslanov, S. Barry Cooper, Iskander Sh. Kalimullin, Mariya Ivanova Soskova. tamc 2008: 568-578 [doi]
- The discontinuity of splitting in the recursively enumerable degreesS. Barry Cooper, Xiaoding Yi. AML, 34(4):247-256, 1995. [doi]
- A non-splitting theorem in the enumeration degreesMariya Ivanova Soskova. APAL, 160(3):400-418, 2009. [doi]