1. Robust Processing of Magnetotelluric Data from the Auroral Zone
2. Ekaputri D, Maulinadya S and Grandis H 2017 Simple Analysis for Magnetotelluric (MT) Depth Resolution using Equivalence Concept in 1D (unpublished).
3. Meloy J (http://www.vlf.it/naturalnoisefloor/naturalnoisefloor.htm)
4. Andersson F 2003 Bezier and B–Spline Technology.
5. On calculating with B-splines