@article{10_4064_fm224_2_1,
     author = {Andreas Baudisch and Amador Martin-Pizarro and Martin Ziegler},
     title = {Ample hierarchy},
     journal = {Fundamenta Mathematicae},
     pages = {97--153},
     publisher = {mathdoc},
     volume = {224},
     number = {2},
     year = {2014},
     doi = {10.4064/fm224-2-1},
     language = {en},
     url = {http://geodesic.mathdoc.fr/articles/10.4064/fm224-2-1/}
}