P. M. Heyman

Cathodochromic cathode ray tube: An operations manual

P. M. Heyman, 1972 .

A ferroelectric field effect device

G. H. Heilmeier, P. M. Heyman, 1966 .

PHOTOCONDUCTIVITY OF PHOTOCHROMIC Gd:CaF2

P. M. Heyman, 2003 .

Note on Transient Current Measurements in Liquid Crystals and Related Systems

P. M. Heyman, G. Heilmeier, P. Heyman, 1967 .