John P. Hartley

Effective discontinuity and a characterisation of the superjump

John P. Hartley, John P. Hartley, 1985, Journal of Symbolic Logic.

The countably based functionals

John P. Hartley, John P. Hartley, 1983, Journal of Symbolic Logic.

Environmental monitoring of offshore oil and gas drilling discharges—A caution on the use of barium as a tracer

John P. Hartley, J. Hartley, 1996 .