@article{10_4064_fm215_1_1,
     author = {Heike Mildenberger and Saharon Shelah},
     title = {Proper translation},
     journal = {Fundamenta Mathematicae},
     pages = {1--38},
     year = {2011},
     volume = {215},
     number = {1},
     doi = {10.4064/fm215-1-1},
     language = {en},
     url = {http://geodesic.mathdoc.fr/articles/10.4064/fm215-1-1/}
}