Critical problems of totally isotropic subspaces in finite orthogonal spaces. - Yan-bing Zhao; Guo-dong Qian; Yu-lin Zhong (Ars Comb., 2010)

Lattice of all subsets of a finite set and partition lattice of a n-set. - Qiong-yang Wu; Yan-bing Zhao; Yuan-ji Huo (Ars Comb., 2012)

Mobius Functions and Characteristic Polynomials of Subspace Lattices Under the Finite Classical Groups. - Li-fang Huo; Yan-bing Zhao; Yuan-ji Huo (Ars Comb., 2016)