https://www.catholic.com/encyclopedia/theodor-schwann
Theodor Schwann | Catholic Answers Encyclopedia
Schwann, THEODOR, German physiologist and founder of the theory of the cellular structure of animal organisms; b. at Neuss, December 7, 1810; d. at Cologne,...
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https://es.wikipedia.org/wiki/Theodor_Schwann
Theodor Schwann - Wikipedia, la enciclopedia libre
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https://www.ebsco.com/research-starters/history/theodor-schwann
Theodor Schwann | History | Research Starters | EBSCO Research
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