1. Alternative formulae for robust Weighted Total Least-Squares solutions for Errors-In-Variables models

   • Zhipeng Lv
   • Lifen Sui

   OriginalPaper 12 March 2021 Pages: 105 - 127

2. Comparison of three methods for computing the gravitational attraction of tesseroids at satellite altitude

   • Longjun Qiu
   • Zhaoxi Chen

   OriginalPaper 12 March 2021 Pages: 128 - 147

3. An alternative geoid model for Africa using the shallow-layer method

   • Mostafa Ashry
   • Wen-Bin Shen
   • Hussein A. Abd-Elmotaal

   OriginalPaper 08 April 2021 Pages: 148 - 167

4. Velocity structure of the upper crust beneath the Jiaonan uplift and its adjacent areas, China

   • Jinchao Shen
   • Song Yao

   OriginalPaper 15 February 2021 Pages: 168 - 183

5. Two-dimensional magnetotelluric data inversion using Lanczos bidiagonalization method with active constraint balancing

   • Faegheh Mina Araghi
   • Mirsattar Meshinchi-Asl
   • Mahmoud Mirzaei

   OriginalPaper 13 April 2021 Pages: 184 - 205

6. Assessment of state of earth dam of Elchovka settling pond by combination of electromagnetic soundings and polarization methods

   • Vadim A. Davydov
   • Olga I. Fedorova
   • Sergey V. Baydikov

   OriginalPaper 22 February 2021 Pages: 206 - 218