In this issue (9 articles)

1. 

   Original Article

   Reliability of partial ambiguity fixing with multiple GNSS constellations

   Jun Wang, Yanming Feng Pages 1-14

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2. 

   Original Article

   The height datum problem and the role of satellite gravity models

   Andrea Gatti, Mirko Reguzzoni, Giovanna Venuti Pages 15-22

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3. 

   Original Article

   A solution to EIV model with inequality constraints and its geodetic applications

   Songlin Zhang, Xiaohua Tong, Kun Zhang Pages 23-28

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4. 

   Original Article

   Analysis of the repeated absolute gravity measurements in the Czech Republic, Slovakia and Hungary from the period 1991–2010 considering instrumental and hydrological effects

   Vojtech Pálinkáš, Martin Lederer, Jakub Kostelecký, Jaroslav Šimek… Pages 29-42

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5. Original Article

   Algorithms for geodesics

   Charles F. F. Karney Pages 43-55

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6. 

   Original Article

   Global height system unification with GOCE: a simulation study on the indirect bias term in the GBVP approach

   Christian Gerlach, Reiner Rummel Pages 57-67

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7. Original Article

   Estimation of mass change trends in the Earth’s system on the basis of GRACE satellite data, with application to Greenland

   C. Siemes, P. Ditmar, R. E. M. Riva, D. C. Slobbe, X. L. Liu… Pages 69-87

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8. Original Article

   An approach to response-based reliability analysis of quasi-linear Errors-in-Variables models

   Witold Prószyński Pages 89-99

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9. 

   IAG Newsletter

   IAG Newsletter

   Gyula Tóth Pages 101-106

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