@ARTICLE{Gonet_Andrzej_Optimization_2012, author={Gonet, Andrzej}, number={No 4}, journal={Archives of Mining Sciences}, howpublished={online}, year={2012}, publisher={Committee of Mining PAS}, title={Optimization of a Directional Borehole Trajectory as the Criterion of Minimum Cost of Performance / Optymalizacja Trajektorii Otworu Kierunkowego Dla Kryterium Minimalizacji Kosztu Jego Wykonania}, URL={http://journals.pan.pl/Content/92972/PDF/10267-Volume57_Issue4-07_paper.pdf.pdf}, doi={10.2478/v10267-012-0059-5}, }