@article{MZ_1975__144_172252,
     author = {D.D. Bonar and K.F. Barth and F.W. Carrol},
     title = {Zeros of {Strongly} {Annular} {Functions.}},
     journal = {Mathematische Zeitschrift},
     pages = {175--180},
     publisher = {mathdoc},
     volume = {144},
     year = {1975},
     zbl = {0293.30032},
     url = {http://geodesic.mathdoc.fr/item/MZ_1975__144_172252/}
}