@article{10_4064_fm125_1_2016,
     author = {G. Campero-Arena and J. Cancino and M. Hru\v{s}\'ak and F. E. Miranda-Perea},
     title = {Incomparable families and maximal trees},
     journal = {Fundamenta Mathematicae},
     pages = {73--89},
     publisher = {mathdoc},
     volume = {234},
     number = {1},
     year = {2016},
     doi = {10.4064/fm125-1-2016},
     language = {en},
     url = {http://geodesic.mathdoc.fr/articles/10.4064/fm125-1-2016/}
}