Articles sur le télectroscope de Jan Szczepanik dans la presse britannique et américaine (1898)
The Chroniche, ? March 1898
The Telegraph, 8 March 1898
Articles cités in "Next Please", The Electrical Engineer, 11 March 1898
Daily News, 10 March 1898
"If we had had the telectroscope in operation some time ago, we might have gone in a theatre in London and witnessed the eclipse of the sun in India".
Cité in The Oxford English Dictionnary, 1933, article "Telectroscope".
The Central Record, Lancaster, Kentucky, February, 3, 1899