@article{MAN_1994__300_2_165261,
     author = {Eric Amar and Pascal J. Thomas},
     title = {A notion of extremal analytic discs related to interpolation in the ball.},
     journal = {Mathematische Annalen},
     pages = {419--434},
     publisher = {mathdoc},
     volume = {300},
     number = {2},
     year = {1994},
     zbl = {0808.32001},
     url = {http://geodesic.mathdoc.fr/item/MAN_1994__300_2_165261/}
}