1. Report of the commissioners appointed to inquire into the application of iron to railway structures;Willis,1849
2. On the forced vibrations of bridges;Timoshenko;Philosoph Mag,1922
3. On the vibrations of the beams under the action of moving loads;Jeffcott;Philosoph Mag,1929
4. On transverse oscillation of beams under the action of moving variable loads;Lowan;Philosoph Mag,1935