Poretsky, Elisabeth K. (1969). Our Own People: A Memoir of "Ignace Reiss" and His Friends. London: Oxford University Press. pp. 1-2 (Letter), 7-26 (Childhood), 27-36 (Polish Party), 37-52 (Lwow), 53-71 (Berlin/Vienna), 72-85 (Prague/Amsterdam), 86-129 (Moscow), 103-107 (Richard Sorge), 130-155 (Europe), 156-207 (Moscow), 208-226 (Switzerland), 243-270 (Afterward), 271-274 (Epilogue). Archivado desde el original el 5 de diciembre de 2012.
bataillesocialiste.wordpress.com
Philippe Bourrinet, "The Marx-Lenin-Luxemburg Front", extract from Philippe Bourrinet, Dutch and German Communist Left on the Le Bataille socialiste website (accessed 2008-08-13)
loc.gov
lccn.loc.gov
Poretsky, Elisabeth K. (1969). Our Own People: A Memoir of "Ignace Reiss" and His Friends. London: Oxford University Press. pp. 1-2 (Letter), 7-26 (Childhood), 27-36 (Polish Party), 37-52 (Lwow), 53-71 (Berlin/Vienna), 72-85 (Prague/Amsterdam), 86-129 (Moscow), 103-107 (Richard Sorge), 130-155 (Europe), 156-207 (Moscow), 208-226 (Switzerland), 243-270 (Afterward), 271-274 (Epilogue). Archivado desde el original el 5 de diciembre de 2012.
