The bibliographic entry was discovered and compiled by a machine, and published without a person checking it against the publication. The publication itself is the authors' own work — this badge says nothing about it.

Two-way pushdown automata

The work

AuthorsJim Gray; Michael A. Harrison; Oscar H. Ibarra
Editors
Typemisc
Year1967
Also known asanon1967twoway
Citekeygray1967twoway

Where it appeared

PublisherElsevier BV

How it got here

How it got hereagent via unpaywall
Added2026-10-26 20:11 UTC
Not denied bya person 2026-10-29 17:12 UTC

Cite it as

@misc{gray1967twoway,
  title        = {Two-way pushdown automata},
  author       = {Jim Gray and Michael A. Harrison and Oscar H. Ibarra},
  year         = {1967},
  publisher    = {Elsevier BV},
  doi          = {10.1016/s0019-9958(67)90369-5},
}

This record lives at https://refs.drheap.org/gray1967twoway/ and will keep doing so. It used to be called anon1967twoway, and those addresses still resolve to this one.