Column water vapour : an intertechnique comparison of estimation methods in EstoniaKeernik, Hannes; Ohvril, Hanno; Jakobson, Erko; Rannat, Kalev; Luhamaa, AndresProceedings of the Estonian Academy of Sciences2014 / p. 37-47 : ill https://artiklid.elnet.ee/record=b2665209*est GAMMAMAPPER - a prototype gamma spectrometer-dataloggerSinivee, VeljoInnovations and advanced techniques in systems, computing sciences and software engineering2008 / p. 507-510 : ill Toote geomeetrilised spetsifikatsioonid (GPS) : üldised käsitlusviisid. Osa 1, Geomeetriliste spetsifikatsioonide ja nõuetele vastavuse hindamise mudel = Geometrical product specifications (GPS) : general concepts. Part 1, Model for geometrical specification and verification (ISO 17450-1:2011) [Võrguteavik]2014