Richard E. Ladner, Richard J. Lipton, Larry J. Stockmeyer. Alternating Pushdown and Stack Automata. SIAM Journal on Computing, 13(1):135-155, 1984.
@article{LadnerLS84,
title = {Alternating Pushdown and Stack Automata},
author = {Richard E. Ladner and Richard J. Lipton and Larry J. Stockmeyer},
year = {1984},
tags = {e-science},
researchr = {https://researchr.org/publication/LadnerLS84},
cites = {0},
citedby = {0},
journal = {SIAM Journal on Computing},
volume = {13},
number = {1},
pages = {135-155},
}