@techreport{2741e310e26542e6ac7942cef3cc19b0,
title = "Comparison of three accurate 3D measurement methods for evaluating as-built floor flatness",
keywords = "close-range photogrammetry, construction quality, laser scanning, tacheometer, close-range photogrammetry, construction quality, laser scanning, tacheometer, close-range photogrammetry, construction quality, laser scanning, tacheometer",
author = "Milka Nuikka and Petri R{\"o}nnholm and Harri Kaartinen and Antero Kukko and Antti Suominen and Panu Salo and Petteri P{\"o}ntinen and Hannu Hyypp{\"a} and Juha Hyypp{\"a} and Henrik Haggr{\'e}n and Ilmari Absetz and Jari Puttonen and Hannu Hirsi",
year = "2008",
language = "English",
series = "XXI ISPRS Congress, Beijing China, 3-11 July 2008",
publisher = "International Society for Photogrammetry and Remote Sensing",
pages = "129--134",
type = "WorkingPaper",
institution = "International Society for Photogrammetry and Remote Sensing",
}