Holy Spirit in Pentecostal Theology 
Here is a paper, on the Holy Spirit in Pentecostal Theology, given by Pastor James Glass of the Elim Pentecostal Church at the July meeting of the CTE Theology and Unity Group at the Focolare Centre. It deals with:
The distinctive emphases of a Pentecostal understanding of the Holy Spirit.
Baptism in the Spirit and Pentecostal mission.
The gifts of the Spirit, Pentecostal understanding of the Church and eschatology.