FENG, Yan-Quan, KOVÁCS, István in YANG, Da-Wei, 2019, On groups all of whose Haar graphs are Cayley graphs. Journal of algebraic combinatorics [na spletu]. 2019. P. 1–18. [Dostopano 14 april 2025]. DOI 10.1007/s10801-019-00894-7. Pridobljeno s: https://link.springer.com/article/10.1007%2Fs10801-019-00894-7