Brzeziński, Karol, Maciej MaŠ›lakowski, and PaweŠ‚ Liszewski. 2018. “Evaluation of the Volume Measurement Optical Method Suitability for Determining the Relative Compaction of Soils”. Civil Engineering Journal 4 (9):2052-59. https://doi.org/10.28991/cej-03091138.