Article on Helen’s work in the Regression Journal, Link
Helen Wambach talking on radio around 1980, Part 1
Helen Wambach talking on radio around 1980, Part 2
Helen Wambach talking on radio around 1980, Part 3

Dr. Helen Wambach – Regressing into the Past and Progressing into the future, Part 1
Dr. Helen Wambach – Regressing into the Past and Progressing into the Future, Part 2

Hans Wilhelm gives a concise explanation of how reincarnation works
using clever hand drawn graphics, Link