| title | ISBN-13 | year of publica- tion | other author(s) |
|---|---|---|---|
| The Case of Valentin Tomberg: Anthroposophy or Jesuitism? | 978-0-904693-85-0 | 1998 | Sergei O. Prokof'ev · Sergei O. Prokofieff |
| The Cycle of the Year as a Path of Initiation Leading to an Experience of the Christ-being: An Esoteric Study of the Festivals | 978-0-904693-70-6 | 1995 | Sergei O. Prokof'ev |
| The East in the Light of the West: Agni Yoga Pt. 1: Two Eastern Streams in the Light of Christian Esotericism | 978-0-904693-57-7 | 1998 | " |
| The Encounter with Evil and its Overcoming Through Spiritual Science: With Essays on the Foundation Stone | 978-1-902636-10-8 | 1999 | " |
| The Spiritual Origins of Eastern Europe and the Future Mysteries of the Holy Grail | 978-0-904693-55-3 | 1993 | " |