The Teachings of Don Juan: A Yaqui Way of Knowledge was published by the University of California Press in 1968 as a work of anthropology, though many critics contend that it is a work of fiction.
 It was written by Carlos Castaneda and submitted as his Master’s thesis in the school of Anthropology.
 It purports to document the events that took place during an apprenticeship with a self-proclaimed Yaqui Indian Sorcerer, don Juan Matus from Sonora, Mexico between 1960 and 1965.
Clarence Malcolm Lowry ( ; 28 July 1909 – 26 June 1957) was an English poet and novelist who is best known for his 1947 novel "Under the Volcano", which was voted No. 11 in the Modern Library 100 Best Novels list.
Carlos Castaneda was an American author who graduated from the University of California at Los Angeles with a PhD in Anthropology.
 Starting with "The Teachings of Don Juan" in 1968 and ending with "The Active Side of Infinity" in 1998, he wrote a series of books that described his putative experiences with the characters 'Don Juan Matus' and 'Genaro Flores' from 1960 to 1973.
Carlos Castaneda (December 25, 1925 April 27, 1998) was an American author with a Ph.D. in anthropology.
Florinda Donner (originally Regine Margarita Thal, later Florinda Donner-Grau) is an American writer and anthropologist known as one of Carlos Castaneda's "witches" (the term for three women who were friends of Castaneda).
Víctor Sánchez (born December 9, 1961) is a Mexican author.
 He was initially inspired by the writings of Carlos Castaneda and by his own studies among the Wirrarika, said to be cultural descendants of the Pre-Columbian Native American Toltecs.
Don Juan Matus is the name used by anthropologist and author Carlos Castaneda to describe a Yaqui Mexican spiritual guide (teacher) in his series of books on Nagualism (although Castaneda repeatedly indicates that "Juan Matus" is pseudonym chosen by the author to protect the bearer's true identity).
 He is described as a Native American of Yaqui/Yuma parentage.
 Castaneda writes that he first met Matus at a bus depot in Nogales, Arizona, in the early 1960s.
 He is described by Castaneda as a 'Man of Knowledge' from a Toltec lineage of seers, who imparts much of his wisdom and clarity through his 'connection' with Castaneda.
 The knowledge is described as being passed on to Castaneda by means of actual experiences, simple exercises, talks, and much patience on the part of both, which ends in transforming Castaneda's view of the world.
 There is extensive scholarly debate whether Matus was a real person, an allegorical figure, or an invention by Castaneda.
Recapitulation is a term first used by Carlos Castaneda in his book, "The Eagle’s Gift", published in 1982.
 In "The Eagle's Gift", Florinda, one of don Juan's party of warriors, teaches Castaneda about the process and purpose of recapitulation.
 She explained that recapitulation consisted of "recollecting one's life down to the most insignificant detail" and that when a woman's recapitulation was complete she "no longer abided by the limitations of her person."
 She further explained that in the process of recapitulation one recounts all the feelings they invested in whatever memory they were reviewing.
Helmut Wautischer is an Austrian philosopher.
 He is currently a senior philosophy lecturer at Sonoma State University.
 He received his Bachelor's degree from the Bundeshandelsakademie Klagenfurt and a PhD in philosophy from Karl-Franzens University of Graz where he studied with Rudolf Haller and Ernst Topitsch.
 He was influenced by the writings of Carlos Castaneda and received a Fulbright scholarship for research on this subject at UCLA, leading to his dissertation, "Methodology and Knowledge.
 Proposing an Expanded Science of Man."
 He has published essays in scholarly journals, such as "Polylog", "Prima Philosophia", "Dialogue and Humanism", "Anthropology of Consciousness", "Shaman", "Journal of Ritual Studies", and "Journal of Ethical Studies".
The Book of est is a fictional account of the training created by Werner Erhard, ("est"), or Erhard Seminars Training, first published in 1976 by Holt, Rinehart and Winston.
 The book was written by est graduate Luke Rhinehart.
 Rhinehart is the pen name of writer George Cockcroft.
 The book was endorsed by Erhard, and includes a foreword by him.
 Its contents attempts to replicate the experience of the est training, with the reader being put in the place of a participant in the course.
 The end of the book includes a comparison by the author between Erhard's methodologies to Zen, "The Teachings of Don Juan" by Carlos Castaneda, and to Rhinehart's own views from "The Dice Man".

Question: Which author also had a PhD in anthropology, Malcolm Lowry or Carlos Castaneda?
Answer: Carlos Castaneda