Articles sur le télectroscope de Jan Szczepanik dans la presse britannique et américaine (1898)
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The Chroniche, ? March 1898
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The Telegraph, 8 March 1898
Articles cités in "Next Please", The Electrical Engineer, 11 March 1898
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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