"Martin Niemöller: "First they came for the Socialists..."". Holocaust Encyclopedia. United States Holocaust Memorial Museum. مؤرشف من الأصل في 2018-07-23. اطلع عليه بتاريخ 2018-07-25. This is a different and older article which contains more complete photographs than the new version.
"Martin Niemöller: "First they came for the Socialists..."". Holocaust Encyclopedia. United States Holocaust Memorial Museum. مؤرشف من الأصل في 2018-07-23. اطلع عليه بتاريخ 2018-07-25. This is a different and older article which contains more complete photographs than the new version.