sci
hub

to open science
Herndon, J. M. (1993). Feasibility of a Nuclear Fission Reactor at the Center of the Earth as the Energy Source for the Geomagnetic Field. Journal of Geomagnetism and Geoelectricity, 45(5), 423–437. doi:10.5636/jgg.45.423 
10.5636/jgg.45.423