Freud, S., Solms, M., & Saling, M. M. (1990). A moment of transition: Two neuroscientific articles. Institute of Psycho-Analysis ; Karnac Books ; Distributed in the United States of America by Brunner/Mazel.

Freud, Sigmund, Mark Solms, and Michael M. Saling. A Moment of Transition: Two Neuroscientific Articles. London : London ; New York : New York, N.Y.: Institute of Psycho-Analysis ; Karnac Books ; Distributed in the United States of America by Brunner/Mazel, 1990.

Freud, Sigmund, et al. A Moment of Transition: Two Neuroscientific Articles. Institute of Psycho-Analysis ; Karnac Books ; Distributed in the United States of America by Brunner/Mazel, 1990.