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2. A comparative study of the magnetic field homogeneity for circular, square and equilateral triangular helmholtz coils, doi: 10.1109/ICEECCOT.2017.8284514.
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5. Year 2023 price list - ferronato - standard helmholtz coils. URL: http://www.serviciencia.es/folletos/Prices-Helmholtz-1.pdf.