Stem ackermannian$ (all stems)
2 papers:
LICS-CSL-2014-LerouxPS #automaton #bound- Hyper-Ackermannian bounds for pushdown vector addition systems (JL, MP, GS), p. 10.
LICS-2011-FigueiraFSS #bound #recursion- Ackermannian and Primitive-Recursive Bounds with Dickson’s Lemma (DF, SF, SS, PS), pp. 269–278.










