*[http://www.rebbe.org/boston.html '''The Zvhil Mezbuz & Zlotschov Rabbinical Dynasty Web Site''']
*[http://en.wikipedia.org/wiki/Zvhil '''Zvhil Hasidic Dynasty'''] Wikipedia
*[http://www.jewishgen.org/yizkor/zvhil/zvhil.html '''Zvhil Yizkor Book''']