Kniotek, Michał, Michał Lupa, and Przemysław Lisowski. 2015. “The Analysis of Vertical Displacements in Upper Silesian Coal Basin Area Using DInSAR and PSInSAR Methods”. Geology, Geophysics and Environment 41 (1):96. https://doi.org/10.7494/geol.2015.41.1.96.