1. The timber tie: today's standly adaptable for future;Maffett;Railway Track and Structures,1980
2. Development of an analytical approach to track maintenance planning;Fazio;Transportation Research Record,1980
3. Examining wood tie failure;Zarembski;Railway Track and Structures,1988
4. The track structure;Beardsley;Mechanical Engineering,1984
5. Look for wood in crossties;Howe;Forest Products Journal,1976