On Maximal Parsings. - Harald Helfgott; Martin Cohn (Data Compression Conference, 1997)

Asymmetry in Ziv/Lempel '78 parsing. - Martin Cohn; Harald Helfgott (SEQUENCES, 1997)

Lossless Image Compression by Block Matching. - James A. Storer; Harald Helfgott (Comput. J., 1997)

Linear-Time Construction of Optimal Context Trees. - Harald Helfgott; Martin Cohn (Data Compression Conference, 1998)

Tilings of Diamonds and Hexagons with Defects. - Harald Helfgott; Ira M. Gessel (Electron. J. Comb., 1999)

Deterministic methods to find primes. - Terence Tao; Ernest Croot III; Harald Helfgott (Math. Comput., 2012)

Machine-Assisted Proofs (ICM 2018 Panel). - James H. Davenport; Bjorn Poonen; James Maynard 001; Harald Helfgott; Pham Huu Tiep; Luís Cruz-Filipe (CoRR, 2018)