@article{AFM_2008_33_2_a12,
     author = {Martin Chuaqui and Dennis Stowe},
     title = {Valence and oscillation of functions in the unit disk},
     journal = {Annales Fennici Mathematici},
     pages = {561--584},
     publisher = {mathdoc},
     volume = {33},
     number = {2},
     year = {2008},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/AFM_2008_33_2_a12/}
}