Addendum: On sets of maximum indetermination of analytic functions. E.F. Collingwood Mathematische Zeitschrift
On sets of maximum indetermination of analytic functions. E.F. Collingwood — 1957 Mathematische Zeitschrift
The radial limits of functions meromorphic in a circular disc. M.L. Cartwright; E.F. Collingwood — 1961 Mathematische Zeitschrift
Tsuji functions with segments of Julia. E.F. Collingwood; George Piranian — 1964 Mathematische Zeitschrift