1. “Centralisation of Inventories and the Square Root Law”;Maister;International Journal of Physical Distribution.,1976
2. Physical Distribution Systems;McKinnon,1989
3. “A Re-appraisal of the Square Root Law”;Das;International Journal of Physical Distribution.,1978
4. “Buffer Stocks and the Square Root Law”;Sussams;Focus on Physical Distribution and Logistics Management.,1935
5. J C Cooper and G Tweddle. “Distribution Round the Clock” in Logistics and Distribution Planning: Strategies for Management (revised edition), edited by J C Cooper, Kogan Page, London 1990.