Baumert, Leonard D.; Gordon, Daniel M. (2004). "On the existence of cyclic difference sets with small parameters". In van der Poorten, Alf; Stein, Andreas (eds.). High Primes and Misdemeanours: Lectures in Honour of the 60th Birthday of Hugh Cowie Williams. Fields Institute Communications. Vol.41. American Mathematical Society. pp.61–68. arXiv:math/0304502.
Leung, Ka Hin; Ma, Siu Lun; Schmidt, Bernhard (2014). "A multiplier theorem". Journal of Combinatorial Theory, Series A. 124: 228–243. doi:10.1016/j.jcta.2014.02.001.
Gordon, Daniel M.; Schmidt, Bernhard (2016). "A survey of the multiplier conjecture". Designs, Codes and Cryptography. 78 (1): 221–236. doi:10.1007/s10623-015-0153-8.
Leung, Ka Hin; Ma, Siu Lun; Schmidt, Bernhard (2004). "Nonexistence of abelian difference sets: Lander's conjecture for prime power orders". Transactions of the American Mathematical Society. 356 (11): 4343–4358. doi:10.1090/S0002-9947-03-03365-8.
Lander, Eric S. (1983). Symmetric Designs: An Algebraic Approach. London Mathematical Society Lecture Note Series. Vol.74. Cambridge University Press. p.224. doi:10.1017/CBO9780511662164. ISBN978-0-521-28693-0.
Leung, Ka Hin; Schmidt, Bernhard (2005). "The field descent method". Designs, Codes and Cryptography. 36 (2): 171–188. doi:10.1007/s10623-004-1703-7.
Leung, Ka Hin; Ma, Siu Lun; Schmidt, Bernhard (2010). "On Lander's conjecture for difference sets whose order is a power of 2 or 3". Designs, Codes and Cryptography. 56 (1): 79–84. doi:10.1007/s10623-009-9344-5.
Feng, Tao; Leung, Ka Hin; Schmidt, Bernhard; Smith, Ken W. (2014). "Hadamard difference sets related to Lander's conjecture". Journal of Algebra. 403: 29–47. doi:10.1016/j.jalgebra.2013.11.027.