America on the Responsa Map: Hasidim, Mitnagdim, and the Trans-Atlantic Social Network of Religious Authority Zef Segal, Menahem Blondheim American Jewish History, Volume 102, Number 1, January 2018, pp. 133-153 (Article) Published by Johns Hopkins University Press DOI: For additional information about this article Access provided at 3 Jul 2019 07:06 GMT with no institutional affiliation https://doi.org/10.1353/ajh.2018.0007 https://muse.jhu.edu/article/685285