Katherine A MacLean, Matthew W Johnson, Roland R Griffiths Mystical experiences occasioned by the hallucinogen psilocybin lead to increases in the personality domain of openness(անգլ.) // Psychopharmacology[en] : journal. — Springer, 2011. — Т. 25. — № 11. — С. 1453—1461. — doi:10.1177/0269881111420188
Katherine A MacLean, Matthew W Johnson, Roland R Griffiths Mystical experiences occasioned by the hallucinogen psilocybin lead to increases in the personality domain of openness(անգլ.) // Psychopharmacology[en] : journal. — Springer, 2011. — Т. 25. — № 11. — С. 1453—1461. — doi:10.1177/0269881111420188