E. Ritchie

Aspects of an inventory control study

P. H. Smith, R. B. Ekanayake, J. M. Norman, 1977 .

An operational research study in a group of public libraries

E. Ritchie, H. Hindle, 1978 .

Communication networks: tools for the efficient management of R&D

E. Ritchie, E. Ritchie, 1977 .

Setting stock levels for wholesaling: Performance measures and conflict of objectives between supplier and stockist

Brian G. Kingsman, E. Ritchie, 1985 .

Stock Replenishment Quantities for Unbounded Linear Increasing Demand: An Interesting Consequence of the Optimal Policy

Aaron K. Tsado, E. Ritchie, 1985 .

The E.O.Q. for Linear Increasing Demand: A Simple Optimal Solution

E. Ritchie, E. Ritchie, 1984 .