@article{10_4064_fm_99_3_155_160,
     author = {Gerald Ungar},
     title = {Countable dense homogeneity and n-homogeneity},
     journal = {Fundamenta Mathematicae},
     pages = {155--160},
     publisher = {mathdoc},
     volume = {99},
     number = {3},
     year = {1978},
     doi = {10.4064/fm-99-3-155-160},
     language = {en},
     url = {http://geodesic.mathdoc.fr/articles/10.4064/fm-99-3-155-160/}
}