Strings with maximally many distinct subsequences and substrings. Flaxman, Abraham, Harrow, Aram W., Sorkin, Gregory B. (2004) The Electronic Journal of Combinatorics [electronic only]
The additive complements of primes and Goldbach's problem Li-Xia Dai, Hao Pan (2014) Acta Arithmetica We extend two results of Ruzsa and Vu on the additive complements of primes.
Using Lovász local lemma in the space of random injections. Lu, Linyuan, Székely, László (2007) The Electronic Journal of Combinatorics [electronic only]