References
- WAGNER, C. F., McCANN, G. D., 1944: Lightning Phenomena. Electrical Transmission and Distribution Reference Book. Third Edition p. 291-324. West-inghouse Electric and Manufacturing Company, East Pittsburg.
- NORINDER, H., 1949: On the Measurement and Nature of Atmospherics Produced by Electric Discharges in Snow Squalls and from other Phenomena. Telhis I, 2.
- NORINDER, H., DAHLE, O., 1946: Measurements by Frame Aerials of Current Variations in Lightning Discharges. Arkiv for Matematik, Astronomi och Fysik. 32, A., 5.
- ACKERMANN, O. A., 1937: A Cathode Ray Oscillograph with Norinder Relay. Lightning Reference Book p. 564. Amer. Inst. of Electrical Engineers, New York.