BIENIASZ, J., WOJNAR, W. and MARCOLA-SADOWSKA, J. 2012. Deformation measurements of the roof protective zone over field no. 1 in Kłodawa Salt Mine. Geology, Geophysics and Environment. 38, 1 (Jan. 2012), 83. DOI:https://doi.org/10.7494/geol.2012.38.1.83.