@article{Hemachandra_1989,
    doi = {10.1016/0022-0000(89)90025-1},
    url = {https://doi.org/10.1016%2F0022-0000%2889%2990025-1},
    year = {1989},
    month = {dec},
    publisher = {Elsevier {BV}},
    volume = {39},
    number = {3},
    pages = {299--322},
    author = {Lane A. Hemachandra},
    title = {The strong exponential hierarchy collapses},
    journal = {Journal of Computer and System Sciences}
}

@article{Hemachandra_1989, doi = {10.1016/0022-0000(89)90025-1}, url = {https://doi.org/10.1016%2F0022-0000%2889%2990025-1}, year = {1989}, month = {dec}, publisher = {Elsevier {BV}}, volume = {39}, number = {3}, pages = {299--322}, author = {Lane A. Hemachandra}, title = {The strong exponential hierarchy collapses}, journal = {Journal of Computer and System Sciences} }