Unknown No information
- YES
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                                    Bunker, in which Dudek with other people hid during the liquidation of the ghetto. 
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            Related sources:
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                                    Jan Kostanski wrote his memoirs with his wife Necha at the end of her life; later, he employed an editor and translator and published the book in Australia in 1998, entitled: 'Janek: Gentile in the Warsaw Ghetto.' 
- 92-93
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                                    Geolocation assigned automatically. Currently verifying map location.