Keil, M. (2000). 'Maistrin'(Mastress) and Business-Woman: Jewish Upper Class Women in Late Medieval Austria. Jewish Studies at the Central European University.

Keil, Martha. "'Maistrin'(Mastress) and Business-Woman: Jewish Upper Class Women in Late Medieval Austria." Jewish Studies at the Central European University 2000.

Keil, Martha. "'Maistrin'(Mastress) and Business-Woman: Jewish Upper Class Women in Late Medieval Austria." Jewish Studies at the Central European University, 2000.