Dh Lee

DISCUSSION ON STRUCTURAL PAPER NO. 52: LONG-SPAN PRESTRESSED CONCRETE BRIDGES CONSTRUCTED BY THE FREYSSINET SYSTEM.

A W Hill, Pb Morice, Ewh Gifford, 1957 .

Application of Pontryagin's Maximum Principle to the Semi-automatic Control of Rail Vehicles

Ip Milroy, Dh Lee, K Tyler, 1982 .