Books

(2) M. Füllekrug, E. Mareev, and M. Rycroft,

''Sprites, elves and intense lightning discharges'',
Nato Science Series II (Mathematics, Physics and Chemistry), Vol. 225,
Springer, Dordrecht, The Netherlands, 2006.
ISBN 1-4020-4627-8

(1) M. Füllekrug,

''Schumann-Resonanzen in den Magnetfeld-Komponenten'',
Cuvillier Verlag, Göttingen, Germany, 1994.
ISBN 3-930340-74-7