Dieter Vaitl, Niels Birbaumer, John Gruzelier, Graham A. Jamieson, Boris Kotchoubey, Andrea Kübler, Dietrich Lehmann, Wolfgang H. R. Miltner, Ulrich Ott, Peter Pütz, Gebhard Sammer, Inge Strauch, Ute Strehl, Jiri Wackermann e Thomas Weiss, Psychobiology of Altered States of Consciousness., in Psychological Bulletin, vol. 131, n. 1, 2005, pp. 98–127, DOI:10.1037/0033-2909.131.1.98, ISSN 1939-1455 (WC · ACNP).
Dieter Vaitl, Niels Birbaumer, John Gruzelier, Graham A. Jamieson, Boris Kotchoubey, Andrea Kübler, Dietrich Lehmann, Wolfgang H. R. Miltner, Ulrich Ott, Peter Pütz, Gebhard Sammer, Inge Strauch, Ute Strehl, Jiri Wackermann e Thomas Weiss, Psychobiology of Altered States of Consciousness., in Psychological Bulletin, vol. 131, n. 1, 2005, pp. 98–127, DOI:10.1037/0033-2909.131.1.98, ISSN 1939-1455 (WC · ACNP).
Dieter Vaitl, Niels Birbaumer, John Gruzelier, Graham A. Jamieson, Boris Kotchoubey, Andrea Kübler, Dietrich Lehmann, Wolfgang H. R. Miltner, Ulrich Ott, Peter Pütz, Gebhard Sammer, Inge Strauch, Ute Strehl, Jiri Wackermann e Thomas Weiss, Psychobiology of Altered States of Consciousness., in Psychological Bulletin, vol. 131, n. 1, 2005, pp. 98–127, DOI:10.1037/0033-2909.131.1.98, ISSN 1939-1455 (WC · ACNP).
Stickgold, R., interviewed 30 October 2000 by Norman Swan for The Health Report on Australia's Radio National (transcript), retrieved 3 July 2008.
worldcat.org
Dieter Vaitl, Niels Birbaumer, John Gruzelier, Graham A. Jamieson, Boris Kotchoubey, Andrea Kübler, Dietrich Lehmann, Wolfgang H. R. Miltner, Ulrich Ott, Peter Pütz, Gebhard Sammer, Inge Strauch, Ute Strehl, Jiri Wackermann e Thomas Weiss, Psychobiology of Altered States of Consciousness., in Psychological Bulletin, vol. 131, n. 1, 2005, pp. 98–127, DOI:10.1037/0033-2909.131.1.98, ISSN 1939-1455 (WC · ACNP).