1. Preliminary essay to the appendix B: experiments for determining the effects produced by causing weights to travel over bars with different velocities;WILLIS,1849
2. Discussion of a differential equation relating to the breaking of railway bridges;STOKES;Transactions of Cambridge Philosophical Society Part 5,1849
3. Die Schwingungen eines Tragers mit bewegter Lasts;ZIMMERMANN;Centralblatt der Bauverwaltung,1896
4. Uber die erzwungenen Schwingungen von gleichformigen elastischen Staben. Mathematische Annalen;KRYLOV,1905
5. S. P. TIMOSHENKO, 1908, Izvestiya Kievskogo politekhnicheskogo instituta, Forced vibration of prismatic bars (in Russian), Zeitschrift. fuer. Mathematik und Physik, 59