@article{10_4064_fm326_11_2016,
     author = {Douglas Ulrich and Richard Rast and Michael C. Laskowski},
     title = {Borel complexity and potential canonical {Scott} sentences},
     journal = {Fundamenta Mathematicae},
     pages = {101--147},
     publisher = {mathdoc},
     volume = {239},
     number = {2},
     year = {2017},
     doi = {10.4064/fm326-11-2016},
     language = {en},
     url = {http://geodesic.mathdoc.fr/articles/10.4064/fm326-11-2016/}
}