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  1. Stationary Subsets of $\Lbrack \Aleph_\Omega \Rbrack^{.Kecheng Liu - 1993 - Journal of Symbolic Logic 58 (4).
  2.  10
    Stationary Subsets of $\Lbrack \Aleph\Omega \Rbrack^{<\OmegaN}$.Kecheng Liu - 1993 - Journal of Symbolic Logic 58 (4):1201 - 1218.
    In this paper, assuming large cardinals, we prove the consistency of the following: Let n ∈ ω and k1, k2 ≤ n. Let f: ω → {k1, k2} be such that for all $n_1 n, cf(\mathscr{B} \cap \omega_m) = \omega_{f(m)}$.
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    Norms-Based Simulation for Personalized Service Provision.Rodrigo Bonacin, M. Cecília C. Baranauskas, Kecheng Liu & Lily Sun - 2009 - Semiotica 2009 (175):403-428.
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    Stationary Subsets of (Nw).Kecheng Liu - 1993 - Journal of Symbolic Logic 58 (4):1201-1218.