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- [9] RADAR SENSORS FOR HUMP YARD AND RAIL CROSSING APPLICATIONS 2013 INTERNATIONAL KHARKOV SYMPOSIUM ON PHYSICS AND ENGINEERING OF MICROWAVES, MILLIMETER AND SUBMILLIMETER WAVES (MSMW), 2013, : 337 - 339
- [10] The new rear derailleur in the Siemens rail-yard ZEITSCHRIFT DES VEREINES DEUTSCHER INGENIEURE, 1929, 73 : 457 - 460