"While reviewing a list titled “Retractions by Nobel Prize winners” (https://retractionwatch.com/retractions-by-nobel-prize-winne...) compiled by the industry watchdog Retraction Watch, historian Yves Gingras found that two essays by physics pioneer Max Planck had been retracted. Gingras, a historian at the Université du Québec à Montréal, found that the papers were retracted decades after their publication in 1940 and 1942 in Die Naturwissenschaften. [...]

Tim Kersjes, the publisher’s head of research integrity, explained that the “decision to retract the papers was a human error and we can confirm that no software or ‘bot’ would have been involved in the process. Unfortunately, our records are limited, as the retractions occurred in 2011, the individuals involved have mostly left the company and the systems by which we record integrity matters have since changed.”"

related https://www.science.org/content/article/why-have-papers-one-...