Adhikari,Surendra; Lambert Caron, Bernhard Steinberger, John T.Reager, Kristian K. Kjeldsen, Ben Marzeion, Eric Larour, Erik R. Ivins (2018). Earth and Planetary Science Letters 502; 126–132.
The article has already attracted some publicity, like this:
Humans are responsible for some of the wobble in Earth's spin.