Internet, alt.obituaries consulté le 11-10-2005
Information trouvée : Leopold B. Felsen, a leading expert on the waves of the electromagnetic spectrum who
expanded his work to include waves in water and other mediums, died on Sept. 24 2005
LCNA (CD-OCLC), 1995-09
Radiation and scattering of waves / Leopold B. Felsen, Nathan Marcuvitz, 1994