L. Oteri,International conference of the Parapsychology Foundation.:Quantum physics and parapsychology;International conference of the Parapsychology Foundation (23rd : 1974 : Geneva).Parapsychology Foundation,1975.
J. B. Rhine,J. G. Pratt.Parapsychology:frontier science of the mind; a survey of the field, the methods, and the facts of FSP and PK research.Charles chomas,1957.