Rooney, B. (2019). Emergency powers in democratic states: Introducing the Democratic Emergency Powers dataset. Research & Politics 6(4). doi:10.1177/2053168019892436.
Not read. The summary is drawn from the abstract or from what the work is standardly cited for. A reading should check it first.
Why this is here
The exchange cited it at turn U16 for the Democratic Emergency Powers dataset. The abstract confirms the coverage, democracies from 1800 to 2012.