@article{10_1017_S0017089500000719,
     author = {Brannan, D. A. and Kirwan, W. E.},
     title = {A covering theorem for typically real functions},
     journal = {Glasgow mathematical journal},
     pages = {153--155},
     year = {1969},
     volume = {10},
     number = {2},
     doi = {10.1017/S0017089500000719},
     url = {http://geodesic.mathdoc.fr/articles/10.1017/S0017089500000719/}
}