@misc{10_1017_S0017089500006947,
     title = {Addendum},
     journal = {Glasgow mathematical journal},
     pages = {275--275},
     year = {1987},
     volume = {29},
     number = {2},
     doi = {10.1017/S0017089500006947},
     url = {http://geodesic.mathdoc.fr/articles/10.1017/S0017089500006947/}
}