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Photographic intensity-measurements of electron diffraction patterns

L. Ornstein, H. Brinkman, A. Hauer, 1938 .

High pressure mercury vapour lamps and their applications

Th. Hehenkamp, W. Elenbaas, W. Elenbaas, 1965 .

High Pressure Mercury Vapour Lamps Having a High Luminance

T. Tol, Chr. Meyer, 1965 .