@incollection{Kamiński21, author = {Paweł Kamiński}, title = {Polish Experience in Shaft Deepening and Mining Shaft Hoist Elongation}, booktitle = {Mining Techniques}, publisher = {IntechOpen}, address = {Rijeka}, year = {2021}, editor = {Abhay Soni}, chapter = {5}, doi = {10.5772/intechopen.92593}, url = {https://doi.org/10.5772/intechopen.92593} }