D. R. Ingram

The concept of accessibility: A search for an operational form

D. R. Ingram, 1971 .

Distance and the decision to visit an emergency department.

D. R. Ingram, R. Murdie, D. Clarke, 1978, Social science & medicine.

An Evaluation of Procedures Utilised in Nearest-Neighbour Analysis

D. R. Ingram, 1978 .