Ilies, Iris-Anda, Helen Egan, i Michail Mantzios. 2019. „Comparing State Anxiety and Mindfulness Between Mindfulness and Loving-Kindness Meditation Whilst Controlling for the Effect of Altruism and Boredom”. Current Issues in Personality Psychology 7 (2):109–119. https://doi.org/10.5114/cipp.2019.85412.