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Indian Railway Track Design, Construction, Maintenance & Modernisation – M.M. Agarwal (former Chief Engineer, Northern Railway, New Delhi) Hony. Adviser, Institution of P.way Engineers (India), Railway Board Office, New Delhi—ISBN 81-900613-1-3

Plasser and Theurer Track Geometry Maintenance Durability Seminar, Athens, 11 October 2011, Ing. Rudolf Becker

YouTube video of Iarnród Éireann Tamper: https://www.youtube.com/watch?v=pmnX7L_nQBQ

System 7 fully hydraulic tamping drive https://www.youtube.com/watch?v=_l68_5mA5Wk

"Track Compendium" DW Media group GmbH I Eurailpress