X. Yi

On the distribution of Lachlan nonsplitting bases

Angsheng Li, S. Barry Cooper, Xiaoding Yi, 2002, Arch. Math. Log..

Cupping the Recursively Enumerable Degrees by D.R.E. Degrees

Angsheng Li, Xiaoding Yi, Angsheng Li, 1999 .

Cupping and Noncupping in the Enumeration Degrees of Sigma20 Sets

Andrea Sorbi, S. Barry Cooper, Xiaoding Yi, 1996, Ann. Pure Appl. Log..