Mordechai Yissachar Ber Leifer (English Wikipedia)

Helfgot, Menahem (October 5, 2020). "האדמו"ר נפטר מקורונה – המשטרה נערכת להלוויתו" [The Rebbe Dies from Corona – Police Prepare for the Funeral]. Channel 20 (in Hebrew). Retrieved October 5, 2020.

bhol.co.il

Weisberg, Moshe (October 5, 2020). "אבל כבד בעולם החסידות: כ"ק האדמו"ר מפיטסבורג זצ"ל איננו" [Deep Mourning in the Hasidic World: The Pittsburgher Rebbe is No Longer With Us]. Behadrei HaHareidim (in Hebrew). Retrieved October 5, 2020.

Kahn, Gabe (January 3, 2012). "Nadvorna Rebbe, 82, Burial on Mt. of Olives Today". Israel National News. Retrieved October 5, 2020. The Nadvorna rebbes descend directly from Rabbi Meir of Premishlan (The Great Rabbi Meir), a disciple and friend of the Baal Shem Tov, founder of the hassidic movement.
Shaul, Ben (October 5, 2020). "Pittsburgh Rebbe passes away". Israel National News. Retrieved October 5, 2020.

Gafni, David (October 5, 2020). "צפו: למרות הסגר אלפים במסע הלוויתו של האדמו"ר מפיטסבורג" [Watch: Despite the closure, thousands attend the funeral procession of the Rebbe of Pittsburgh]. Kan Darom (in Hebrew). Retrieved October 5, 2020.

Shafer, Shimi (October 5, 2020). "האדמו"ר רבי מרדכי יששכר בער לייפער מפיטסבורג זצוק"ל" [The Pittsburgher Rebbe, Mordechai Yissachar Ber Leifer]. Kikar HaShabbat (in Hebrew). Retrieved October 5, 2020.
Shafer, Shimi (October 5, 2020). "הבן הבכור, יד ימינו ואיש סודו • זה ה'ממשיך' של פיטסבורג" [The eldest son, his right-hand man and confidante: This is the 'successor' of Pittsburgh]. Kikar HaShabbat (in Hebrew). Retrieved October 5, 2020.

"The Pittsburger Rebbe, Rav Mordechai Yissachar Ber Leifer". www.matzav.com. October 4, 2020. Retrieved September 12, 2024.

"Overview of Pittsburgh: A Warm Hasidic Community in Ashdod, Israel". pittsburghdynasty.org. Archived from the original on April 26, 2009. Retrieved February 1, 2010.
"A brief history of the Pittsburgh Dynasty". www.pittsburghdynasty.org. Archived from the original on April 22, 2009.

Ezra, Guy (October 5, 2020). "ברוך דיין האמת: האדמו"ר מפיטסבורג הלך לעולמו" [Blessed is the True Judge: The Pittsburgher Rebbe has died]. srugim.co.il (in Hebrew). Retrieved October 5, 2020.

Klass, Rabbi Yaakov (November 26, 2008). "Q & A: Dismissal of a Rabbi (Part I)". The Jewish Press. Archived from the original on July 17, 2011. Retrieved February 1, 2010.

"Overview of Pittsburgh: A Warm Hasidic Community in Ashdod, Israel". pittsburghdynasty.org. Archived from the original on April 26, 2009. Retrieved February 1, 2010.
"A brief history of the Pittsburgh Dynasty". www.pittsburghdynasty.org. Archived from the original on April 22, 2009.
Venafshi by Pittsburgh Archived May 30, 2009, at the Wayback Machine Mostly music.com.
Klass, Rabbi Yaakov (November 26, 2008). "Q & A: Dismissal of a Rabbi (Part I)". The Jewish Press. Archived from the original on July 17, 2011. Retrieved February 1, 2010.