Werner Damm, Andreas Goerdt. An Automata-Theoretical Characterization of the OI-Hierarchy. Inf. Comput., 71(1/2):1-32, October/November 1986.
@article{DammG86, title = {An Automata-Theoretical Characterization of the OI-Hierarchy}, author = {Werner Damm and Andreas Goerdt}, year = {1986}, month = {October/November}, researchr = {https://researchr.org/publication/DammG86}, cites = {0}, citedby = {0}, journal = {Inf. Comput.}, volume = {71}, number = {1/2}, pages = {1-32}, }