Finnish permanent GNSS network: From dual-frequency GPS to multi-satellite GNSS. - Hannu Koivula; Jaakko Kuokkanen; Simo Marila; Tomi Tenhunen; Pasi Häkli; Ulla Kallio; Sonja Nyberg; Markku Poutanen (UPINLBS, 2012)

GNSS Positioning Aspects for the Intelligent Shipping Test Laboratory at Rauma Harbor. - Simo Marila; Octavian Andrei; Hannu Koivula; Pasi Häkli; Mirjam Bilker-Koivula (ICL-GNSS (Work in Progress), 2020)

Accuracy fluctuations of ICESat-2 height measurements in time series. - Xu Wang 059; Xinlian Liang; Weishu Gong; Pasi Häkli; Yunsheng Wang (Int. J. Appl. Earth Obs. Geoinformation, 2024)