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Here's an abstract of part II of his paper in IEEE Transactions on Plasma Science:

Characteristics for the Occurrence of a High-Current Z-Pinch Aurora as Recorded in Antiquity Part II: Directionality and Source

Peratt, A.L. McGovern, J. Qoyawayma, A.H. Van der Sluijs, M.A. Peratt, M.G.
Los Alamos Nat. Lab., Los Alamos
This paper appears in: Plasma Science, IEEE Transactions on
Publication Date: Aug. 2007
Volume: 35 , Issue: 4 , Part 1
On page(s): 778 - 807
Location: Eindhoven, Netherlands
ISSN: 0093-3813
INSPEC Accession Number:9616038
Digital Object Identifier: 10.1109/TPS.2007.902630
Current Version Published: 2007-08-13

Abstract
The discovery that objects from the Neolithic or Early Bronze Age carry patterns associated with high-current Z-pinches provides a possible insight into the origin and meaning of these ancient symbols produced by humans. Part I deals with the comparison of graphical and radiation data from high-current -pinches to petroglyphs, geoglyphs, and megaliths. Part I focused primarily, but not exclusively, on petroglyphs of some 84 different morphologies: pictures found in laboratory experiments and carved on rock. These corresponded to mankind's visual observations of ancient aurora as might be produced if the solar wind had increased (T. Gold) at times between one and two orders of magnitude, millennia ago. Part II focuses on the source of light and its temporal change from a current-increasing Z-pinch or dense-plasma-focus aurora. Orientation and field-of-view data are given as surveyed and contributed from 139 countries, from sites and fields containing several millions of these objects. This information allows a reconstruction of the auroral form presumably associated with extreme geomagnetic storms and shows, based on existent geophysical evidence, plasma flow inward at Earth's south polar axis.