From: Rabbi Mordechai Leib Winkler
To: Rabbi Yoel Katz
The responsum discusses villagers who lack a minyan in their place and come from outside the techum for public prayer, citing opinions of Maharam Schick and Mahari Asad who are stringent, and Chasam Sofer regarding bringing wine for Kiddush from outside the techum.
Source: Orach Chayim III §28