Wasilewski, Jerzy (2014). "25 September: Absorption of Polish Railways by the German Reichsbahn" [25 września. Wcielenie kolei polskich na Śląsku, w Wielkopolsce i na Pomorzu do niemieckich kolei państwowych Deutsche Reichsbahn]. Polskie Koleje Państwowe PKP. Historia kolei na terenie Polski. Archived from the original on 2014-02-08 – via Archive.is, page missing from Wayback, 8 February 2014.
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Masłowska, Teresa (2 September 2007). "Wojenne Drogi Polskich Kolejarzy" [On the war paths of Polish railwaymen] (PDF). Czy wiesz, że... Kurier PKP NR 35 / 2 WRZEŚNIA 2007: 13. Archived from the original on 24 February 2012. Retrieved 8 February 2014 – via PDF file, direct download (644 KB), archived by Wayback Machine. Magazine Kurier PKP was last published in 2010.