Otto Boyde: Sport-Limonade (poster, Dresden, before 1893), photo by Frank Papperitz, 2019, Wikimedia Commons, https://commons.wikimedia.org/wiki/File:Otto_Boyde_Dresden.jpg.
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Otto Boyde: Sport-Limonade (poster, Dresden, before 1893), photo by Frank Papperitz, 2019, Wikimedia Commons, https://commons.wikimedia.org/wiki/File:Otto_Boyde_Dresden.jpg. |
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| Part of: Serbe-Kamp É, Bemme J, Pollak DJ, Mayer K (2023) Open Citizen Science: fostering open knowledge with participation. Research Ideas and Outcomes 9: e96476. https://doi.org/10.3897/rio.9.e96476 |
