Katz, Dovid, Grammar of the Yiddish Language, Duckworth, London, 1987, . http://www.dovidkatz.net/dovid/PDFLinguistics/2-1987-Grammar-Yiddish.pdf Grammar of the Yiddish Language by Dovid Katz Mark, Yudl, A Grammar of Standard Yiddish, CYCO, New York, 1978 (in Yiddish).