@article{TCSLM2017, title = "A Novel Characterization of the Complexity Class Θ^P_k Based on Counting and Comparison", author = "Thomas Lukasiewicz and Enrico Malizia", year = "2017", journal = "Theoretical Computer Science", month = "September", pages = "21--33", publisher = "Elsevier", url = "https://doi.org/10.1016/j.tcs.2017.06.023", volume = "694", }