@article{JRAM_1975__273_151540,
     author = {D.D. Bonar and F.W. Caroll},
     title = {Not every annular function is strongly annular.},
     journal = {Journal f\"ur die reine und angewandte Mathematik},
     pages = {57--60},
     publisher = {mathdoc},
     volume = {273},
     year = {1975},
     zbl = {0299.30029},
     url = {http://geodesic.mathdoc.fr/item/JRAM_1975__273_151540/}
}