@article{PM_2009_2009_1_a4,
     author = {Agler, J. and  McCarthy, J. E. },
     title = {Cusp algebras.},
     journal = {Publicacions matem\`atiques},
     pages = {111-118},
     year = {2009},
     volume = {53},
     number = {1},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/PM_2009_2009_1_a4/}
}