Here is a very interesting interview of Prof. Lawrence H. Schiffman and a Samaritan Israelite for the A.B. Samaritan News publication.
Recommended reading by Schiffman:
The Samaritans in Tannaitic Halakhah, JQR 75 (1985), pp. 323-50
Who Was a Jew? Rabbinic and Halakhic Perspectives on the Jewish-Christian Schism, Hoboken: Ktav, 1985, pp. xii + 131.