Nicholas Geoffrey Lemprière Hammond
Lucia F. Nixon and Simon Price
Ian Archibald Richmond, Eric William Marsden, and Richard Allan Tomlinson
Frederick Norman Pryce, David Edward Eichholz, and Michael Vickers
O. T. P. K. Dickinson
Gla (ancient name unknown), a rocky outcrop at the NE end of Lake *Copais in *Boeotia, was surrounded by a massive fortification wall, enclosing some 20 ha., late in the 14th cent.