@article{AFM_2012_37_2_a12,
     author = {\'Alvaro Martinez-P\'erez},
     title = {Real valued functions and metric spaces quasi-isometric to trees},
     journal = {Annales Fennici Mathematici},
     pages = {525--538},
     publisher = {mathdoc},
     volume = {37},
     number = {2},
     year = {2012},
     doi = {10.5186/aasfm.2012.3734},
     language = {en},
     url = {http://geodesic.mathdoc.fr/articles/10.5186/aasfm.2012.3734/}
}