%0 Journal Article %J J. Symb. Log. %D 2017 %T Degrees of categoricity on a cone via η-systems %A Csima, Barbara F. %A Harrison-Trainor, Matthew %B J. Symb. Log. %V 82 %P 325–346 %G eng %U https://doi.org/10.1017/jsl.2016.43 %R 10.1017/jsl.2016.43