Sasai, Y., Johnston, M. J. S., Tanaka, Y., Mueller, R., Hashimoto, T., Utsugi, M., Sakanaka, S., Uyeshima, M., Zlotnicki, J., & Yvetot, P. (2007). Drag-out effect of piezomagnetic signals due to a borehole: the Mogi source as an example. Annals of Geophysics, 50(1). https://doi.org/10.4401/ag-3089