Name Yisroel Harfenes | ||
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Rabbi Yisroel Dovid ben Menachem Nachum Harfenes is a Haredi posek ("decisor of Jewish law") and scholar, residing in Williamsburg, Brooklyn, New York. He is the Rabbi of the Yisroel Vehazmanim Synagogue in Williamsburg, and is the author of multiple books on Halakha. Many of the books he has authored are responsa. Among the books he has authored are:

Many of these books are available online (for free) at hebrewbooks.org. He is a dayan on the Hisachdus Harabonim Beth din in Williamsburg.
References
Yisroel Dovid Harfenes Wikipedia(Text) CC BY-SA