Difference Sets in Dihedral Groups. - Ka Hin Leung; Siu Lun Ma; Yan Loi Wong (Des. Codes Cryptogr., 1991)

Abelian Divisible Difference Sets with Multiplier - 1. - Ka Hin Leung; Siu Lun Ma; Victor Tan (J. Comb. Theory A, 1992)

A Construction of Partial Difference Sets in Zp2 × Zp2 × . × Zp2. - Ka Hin Leung; Siu Lun Ma (Des. Codes Cryptogr., 1996)

Attack on RSA-Type Cryptosystems Based on Singular Cubic Curves over Z/nZ. - Seng Kiat Chua; Ka Hin Leung; San Ling (Theor. Comput. Sci., 1999)

Cyclic Relative Difference Sets with Classical Parameters. - K. T. Arasu 001; John F. Dillon; Ka Hin Leung; Siu Lun Ma (J. Comb. Theory A, 2001)

A Trace Conjecture and Flag-Transitive Affine Planes. - Ronald D. Baker; Gary L. Ebert; Ka Hin Leung; Qing Xiang (J. Comb. Theory A, 2001)

Constructions of Relative Difference Sets with Classical Parameters and Circulant Weighing Matrices. - Ka Hin Leung; Siu Lun Ma; Bernhard Schmidt 001 (J. Comb. Theory A, 2002)

Asymptotic Nonexistence of Difference Sets in Dihedral Groups. - Ka Hin Leung; Bernhard Schmidt 001 (J. Comb. Theory A, 2002)

New binary linear codes from algebraic curves. - Ka Hin Leung; San Ling; Chaoping Xing (IEEE Trans. Inf. Theory, 2002)

On Mathon's construction of maximal arcs in Desarguesian planes II. - Frank Fiedler; Ka Hin Leung; Qing Xiang (J. Comb. Theory A, 2004)

The Field Descent Method. - Ka Hin Leung; Bernhard Schmidt 001 (Des. Codes Cryptogr., 2005)

Circulant weighing matrices of weight 22t. - K. T. Arasu 001; Ka Hin Leung; Siu Lun Ma; Ali Nabavi; Dwijendra K. Ray-Chaudhuri (Des. Codes Cryptogr., 2006)

Determination of all possible orders of weight 16 circulant weighing matrices. - K. T. Arasu 001; Ka Hin Leung; Siu Lun Ma; Ali Nabavi; Dwijendra K. Ray-Chaudhuri (Finite Fields Their Appl., 2006)

New Hadamard matrices of order 4p2 obtained from Jacobi sums of order 16. - Ka Hin Leung; Siu Lun Ma; Bernhard Schmidt 001 (J. Comb. Theory A, 2006)

Cyclic codes over GR(p2, m) of length pk. - Han Mao Kiah; Ka Hin Leung; San Ling (Finite Fields Their Appl., 2008)

Proper partial geometries with Singer groups and pseudogeometric partial difference sets. - Ka Hin Leung; Siu Lun Ma; Bernhard Schmidt 001 (J. Comb. Theory A, 2008)

On the dimensions of the binary codes of a class of unitals. - Ka Hin Leung; Qing Xiang (Discret. Math., 2009)

On Lander's conjecture for difference sets whose order is a power of 2 or 3. - Ka Hin Leung; Siu Lun Ma; Bernhard Schmidt 001 (Des. Codes Cryptogr., 2010)

Erratum to "On the dimensions of the binary codes of a class of unitals" [Discrete Math. 309(2009) 570-575]. - Ka Hin Leung; Qing Xiang (Discret. Math., 2011)

Finiteness of circulant weighing matrices of fixed weight. - Ka Hin Leung; Bernhard Schmidt 001 (J. Comb. Theory A, 2011)

A note on cyclic codes over GR(p 2, m) of length p k. - Han Mao Kiah; Ka Hin Leung; San Ling (Des. Codes Cryptogr., 2012)

New restrictions on possible orders of circulant Hadamard matrices. - Ka Hin Leung; Bernhard Schmidt 001 (Des. Codes Cryptogr., 2012)

Binary Cyclic codes with two primitive nonzeros - Tao Feng 001; Ka Hin Leung; Qing Xiang (CoRR, 2013)

Proper circulant weighing matrices of weight $$p^2$$. - Ka Hin Leung; Siu Lun Ma (Des. Codes Cryptogr., 2014)

A multiplier theorem. - Ka Hin Leung; Siu Lun Ma; Bernhard Schmidt 001 (J. Comb. Theory A, 2014)

The anti-field-descent method. - Ka Hin Leung; Bernhard Schmidt 001 (J. Comb. Theory A, 2016)

There is no lattice tiling of Zn by Lee spheres of radius 2 for n≥3. - Ka Hin Leung; Yue Zhou (CoRR, 2018)

Structure of group invariant weighing matrices of small weight. - Ka Hin Leung; Bernhard Schmidt 001 (J. Comb. Theory A, 2018)

Nonexistence results on generalized bent functions Zqm→Zq with odd m and q ≡ 2 ( mod 4). - Ka Hin Leung; Bernhard Schmidt 001 (J. Comb. Theory A, 2019)

New nonexistence results on (m, n)-generalized bent functions. - Ka Hin Leung; Qi Wang 012 (Des. Codes Cryptogr., 2020)

New constructions of Hadamard matrices. - Ka Hin Leung; Koji Momihara (J. Comb. Theory A, 2020)

No lattice tiling of Zn by Lee sphere of radius 2. - Ka Hin Leung; Yue Zhou 001 (J. Comb. Theory A, 2020)

A new family of Hadamard matrices of order 4(2q2+1). - Ka Hin Leung; Koji Momihara; Qing Xiang (Discret. Math., 2021)

Nonexistence of strong external difference families in abelian groups of order being product of at most three primes. - Ka Hin Leung; Shuxing Li; Theo Fanuela Prabowo (J. Comb. Theory A, 2021)

Some nonexistence results for (v, m, k, pq)-strong external difference families. - Ka Hin Leung; Theo Fanuela Prabowo (J. Comb. Theory A, 2022)

On the nonexistence of semi-regular relative difference sets. - Ka Hin Leung; Bernhard Schmidt 001; Tao Zhang 030 (J. Comb. Theory A, 2023)

Nonexistence results of generalized bent functions from Z2n to Zm. - Ka Hin Leung; Shuxing Li; Songtao Mao (J. Comb. Theory A, 2023)

Classification of semiregular relative difference sets with $ gcd ( lambda ,n)=1$ attaining Turyn's bound. - Ka Hin Leung; Bernhard Schmidt 001; Tao Zhang 030 (Des. Codes Cryptogr., 2024)

Partial difference sets from unions of cyclotomic classes. - Ka Hin Leung; Koji Momihara; Qing Xiang (Finite Fields Their Appl., 2025)

On lattice tilings of ℤn by limited magnitude error balls 𝒝(n,2,k1,k2) with k1>k2. - Ka Hin Leung; Ran Tao; Daohua Wang; Tao Zhang (CoRR, 2025)