Adapting a regional geoid model to national geodetic infrastructure and conventions [Online resource]Oja, Tõnis; Märdla, Silja; Ellmann, Artu; Rüdja, Andres1st Joint Commission 2 and IGFS Meeting International Symposium on Gravity, Geoid and Height Systems 2016 : September 19-23, 2016, Thessaloniki, Greece : program2016 / [2] p http://gghs2016.com/search/?entry=958

From discrete gravity survey data to a high-resolution gravity field representation in the Nordic-Baltic regionMärdla, Silja; Agren, Jonas; Strykowski, Gabriel; Oja, Tõnis; Ellmann, ArtuMarine geodesy2017 / p. 416-453 : ill https://doi.org/10.1080/01490419.2017.1326428

From discrete gravity survey data to a high-resolution gravity field representation in the Nordic-Baltic region [Online resource]Märdla, Silja; Ågren, Jonas; Strykowski, Gabriel; Oja, Tõnis; Ellmann, Artu1st Joint Commission 2 and IGFS Meeting International Symposium on Gravity, Geoid and Height Systems 2016 : September 19-23, 2016, Thessaloniki, Greece : program2016 / [2] p http://gghs2016.com/presentation-info/?presentation=719