Smith, S. J.; Purcell, E. M. (1953). "Visible Light from Localized Surface Charges Moving across a Grating". Physical Review. 92 (4): 1069–1069. doi:10.1103/PhysRev.92.1069. ISSN0031-899X.
Friedman, A.; Gover, A.; Kurizki, G.; Ruschin, S.; Yariv, A. (1988). "Spontaneous and stimulated emission from quasifree electrons". Reviews of Modern Physics. 60 (2): 471–535. doi:10.1103/RevModPhys.60.471. ISSN0034-6861.
worldcat.org
Smith, S. J.; Purcell, E. M. (1953). "Visible Light from Localized Surface Charges Moving across a Grating". Physical Review. 92 (4): 1069–1069. doi:10.1103/PhysRev.92.1069. ISSN0031-899X.
Friedman, A.; Gover, A.; Kurizki, G.; Ruschin, S.; Yariv, A. (1988). "Spontaneous and stimulated emission from quasifree electrons". Reviews of Modern Physics. 60 (2): 471–535. doi:10.1103/RevModPhys.60.471. ISSN0034-6861.