@article{10_1017_S0017089500009897,
     author = {Crabb, M. J. and McGregor, C. M.},
     title = {Interpolation and inequalities for functions of exponential type: the {Arens} irregularity of an extremal algebra},
     journal = {Glasgow mathematical journal},
     pages = {325--326},
     year = {1993},
     volume = {35},
     number = {3},
     doi = {10.1017/S0017089500009897},
     url = {http://geodesic.mathdoc.fr/articles/10.1017/S0017089500009897/}
}