@techreport{e89b73ea10c64cc48b4dc5f0ae0f4068,
title = "Safety effects on installing new guardrails and improving existing guardrails",
keywords = "crashworthy, guardrail, length of need, rock cut, crashworthy, guardrail, length of need, rock cut, crashworthy, guardrail, length of need, rock cut",
author = "Marko Kelkka",
year = "2002",
language = "English",
series = "Finnra Engineering News",
publisher = "Tiehallinto",
number = "No 11",
pages = "16",
type = "WorkingPaper",
institution = "Tiehallinto",
}