1. An original setup to measure grounding impedances and resistances using auxiliary electrodes buried vertically in the ground;M Guimar�es;International Conference on Grounding & International Conference on Lightning Physics and Effects,2020
2. An original setup to measure grounding resistances using auxiliary circuits buried vertically in the ground;J O Paulino;2021 35th International Conference on Lightning Protection (ICLP) and XVI International Symposium on Lightning Protection (SIPDA),2021
3. Grounding measurements using auxiliary circuits disposed vertically in the ground;M F Guimar�es;Electric Power Systems Research,2022
4. Measurement of earth-electrode resistance with particular reference to earth-electrode systems covering a large area;G Tagg;proceedings of the Institution of Electrical Engineers,1964