https://www.chicagotribune.com/news/ct-xpm-1985-02-07-8501080137-story.html
https://www.claimscon.org/about/history/closed-programs/medical-experiments/personal-statements-from-victims/
https://www.nytimes.com/1985/07/21/magazine/what-made-this-man-mengele.html
https://www.thoughtco.com/mengeles-children-twins-of-auschwitz-1779486
https://www.bbc.com/news/magazine-30933718
https://en.wikipedia.org/wiki/SS_Race_and_Settlement_Main_Office
https://en.wikipedia.org/wiki/Josef_Mengele
https://www.nytimes.com/2020/01/28/books/review/mengele-david-g-marwell.html
https://en.wikipedia.org/wiki/Jona_Laks
https://candlesholocaustmuseum.org/learn/mengele-twin-stories.html
https://www.aljazeera.com/opinions/2017/8/2/remembering-the-roma-victims-of-the-holocaust
https://www.justice.gov/sites/default/files/criminal-hrsp/legacy/2011/06/06/10-30-92mengele-exhibits.pdf
https://www.newyorker.com/magazine/2020/06/22/revisiting-mengeles-malignant-race-science
https://www.chcuk.co.uk/wp-content/uploads/2018/12/2011-03-08_The-Mengele-Twins-and-Human-Experimentation.pdf
https://books.google.co.id/books?id=NTzpAwAAQBAJ&pg=PR13&lpg=PR13&dq=One+day,+Mengele+took+them+away.+When+they+returned,+they+were+in+a+terrible+state+%E2%80%94+they+had+been+sewn+together,+back+to+back,+like+Siamese+twins.+Their+wounds+were+infected+and+oozing+pus.+They+screamed+day+and+night.+Then+their+parents+%E2%80%94+I+remember+the+mother%27s+name+was+Stella+%E2%80%94+managed+to+get+some+morphine+and+they+killed+the+children+in+order+to+end+their+suffering,%22&source=bl&ots=eobE5Pmc12&sig=ACfU3U3rbEg5NYNGZSdzbNVWvJIBJVmgjA&hl=en&sa=X&ved=2ahUKEwiwzqKgivHxAhV97XMBHfeNCakQ6AEwA3oECAsQAw#v=onepage&q=One%20day%2C%20Mengele%20took%20them%20away.%20When%20they%20returned%2C%20they%20were%20in%20a%20terrible%20state%20%E2%80%94%20they%20had%20been%20sewn%20together%2C%20back%20to%20back%2C%20like%20Siamese%20twins.%20Their%20wounds%20were%20infected%20and%20oozing%20pus.%20They%20screamed%20day%20and%20night.%20Then%20their%20parents%20%E2%80%94%20I%20remember%20the%20mother's%20name%20was%20Stella%20%E2%80%94%20managed%20to%20get%20some%20morphine%20and%20they%20killed%20the%20children%20in%20order%20to%20end%20their%20suffering%2C%22&f=false
https://www.dvidshub.net/news/printable/48330
https://forum.axishistory.com/viewtopic.php?t=51878
http://nizkor.com/hweb/people/e/eichmann-adolf/transcripts/Sessions/Session-071-01.html
https://candlesholocaustmuseum.org/file_download/inline/6ca8c867-2fe2-4cda-8dec-6f9d885e61a7
https://historyofyesterday.com/the-twins-which-survived-doctor-mengeles-experiments-84a02f713f2a
https://revistapesquisa.fapesp.br/en/the-sentimental-memoirs-of-the-angel-of-death/
https://www.theguardian.com/world/2004/nov/23/secondworldwar
https://www.haaretz.com/1.5094756
https://www.realclearscience.com/blog/2013/09/sciences-long-history-of-sewing-two-animals-together.html