Boobani, Behnam, Zaiga Kalnina, Tatjana Glaskova-Kuzmina, Liga Erina, and Inga Liepina. “Utilizing Facial Emotion Analysis With FaceReader to Evaluate the Effects of Outdoor Activities on Preschoolers’ Basic Emotions: A Pilot Study in E-Health”. International Journal of Online and Biomedical Engineering (iJOE) 21, no. 07 (June 3, 2025): pp. 61–75. Accessed May 16, 2026. https://online-journals.org/index.php/i-joe/article/view/54291.