A study on a position measurement method for conduit pipelines using cumulating attitude
Auf dem Wege zu Grenzwerten fuer Fahrbahnunebenheiten - Teil 1
Vom Gleisrevisionswagen zur Oberbau-Messwageneinheit (OMWE)
NS adopts contact-free measurement of track geometry
Development of an automated plugging factor monitor
Sensors in highway and civil engineering, 5. February, 1981, London, GB