Portnoy, E. (2016). Purim on Pesach: The invented tradition of Passover "Yontef-bletlekh" in the Warsaw Yiddish press. Studies in Contemporary Jewry.

Portnoy, Edward. "Purim on Pesach: The Invented Tradition of Passover "Yontef-bletlekh" in the Warsaw Yiddish Press." Studies in Contemporary Jewry 2016.

Portnoy, Edward. "Purim on Pesach: The Invented Tradition of Passover "Yontef-bletlekh" in the Warsaw Yiddish Press." Studies in Contemporary Jewry, 2016.