MitxelEzquiaga. Agustin Gómez de Segura, “el vasco legendario”. La azarosa vida del renteriano será objeto de una coproducción televisiva vasco-rusa: https://web.archive.org/web/20140812142441/http://www.errenteria.net/es/ficheros/40_12177es.pdf
Thomas Faltin. Chefs der Gestapo sindnieverurteiltworden / https://www.stuttgarter-zeitung.de/inhalt.hotel-silber-in-stuttgart-chefs-der-gestapo-sind-nie-verurteilt-worden.d9e68d9e-e103-4f38-8167-23bcfb2bd406.html
FROMOND Francine, Albertine [Pseudonyme à Moscou: Madeleine DUPUY] / http://maitron-fusilles-40-44.univ-paris1.fr/spip.php?article2441
Gómez el futbolista vasco de la URSS, 14.10.2015 / http://euskalherriasozialista.blogspot.com/2015/10/gomez-el-futbolista-vasco-de-la-urss.html
John Halstead and Barry Me Loughlin, British and Irish Students at the International Lenin School, Moscow, 1926-37. Saothar, Irish Labour History Society / http://irelandscw.com/ibvol-ILSchool.htm
McLoughlin, Barry. NKVD-SOE Cooperation and Austria 1941–1945 / https://www.mcloughlin.at/wp-content/uploads/2018/05/SOE-NKVD-cooperation-talk-vienna-19.12.2008.pdf
Rueda Laffond, J. C.; Fuentes Históricas para El Estudio de la Emigración Española a la URSS (1936–2007) / http://formu.info/e-xterior-xxi-f-uentes-h-istricas-para.html?page=543
https://www.svoboda.org/a/126861.html
https://epdf.pub/historical-dictionary-of-german-intelligence-historical-dictionaries-of-intellig.html
https://web.archive.org/web/20160323000328/http://www.dcu.ie/~sheehanh/hms13ils.pdf
https://www.researchgate.net/publication/31011103_The_International_Lenin_School_A_Response_to_Cohen_and_Morgan
http://www.specialforcesassociation.org/wp-content/uploads/2013/03/Combat_Jump_Record_03.07.2013.pdf
http://www.plan-sussex-1944.net/anglais/infiltrations_into_france.pdf
https://kipdf.com/carta-de-espaa-recuerdos-en-ambar-desde-cuba_5ac4c4251723ddd0fd3896d4.html
http://amistadhispanosovietica.blogspot.com/2012/04/agustin-gomez-el-vasco-que-triunfo-en.html
https://uboat.net/men/strelow.htm
https://www.bundesstiftung-aufarbeitung.de/wer-war-wer-in-der-ddr
https://ru.openlist.wiki/Крепс_Михаил_Евсеевич_(1895)
https://rvvdku.mil.ru/O_VUZe/Istoriya
http://www.gerryhealy.net/page106.html
http://alcala.ru/bse/izbrannoe/slovar-IA/JA10256.shtml
https://pamyat-naroda.ru/heroes/podvig-chelovek_nagrazhdenie21741629/
https://www.mediathek.at/1938/suche/detail/atom/1D7A493F-115-00019-00002267-1D7A002D/pool/BWEB/
http://www.ravensbrueckerinnen.at
https://www.wien.gv.at/english/history/overview/reconstruction.html