@article{10_1017_S0017089515000233,
     author = {PARSONS, MARK JAMES},
     title = {EXPLICIT {CONSTRUCTION} {OF} {COMPANION} {BASES}},
     journal = {Glasgow mathematical journal},
     pages = {357--384},
     year = {2016},
     volume = {58},
     number = {2},
     doi = {10.1017/S0017089515000233},
     url = {http://geodesic.mathdoc.fr/articles/10.1017/S0017089515000233/}
}