http://hebrew.gfh.org.il/ghetto_struggle_f8.htm
http://www.yadvashem.org.il/Odot/prog/INDEX_gibuy.ASP?gate=1-7
http://www.korczak-school.org.il/heb/fight.asp
http://hebrew.gfh.org.il/ghetto_struggel_hebrew_toc.htm
http://www.snunit.k12.il/sachlav/noar/main/upload/.tikmasa/polin60year.doc
2. http://www.yad-vashem.org.il/heb_site/heb_remembrance/yom_hazicharon/gutmann.html
http://www.yadvashem.org.il/Odot/prog/index_gibuy.asp?gate=2-40&type_id=40
http://lib.cet.ac.il/pages/item.asp?item=550
בהצלחה