Dawn of the Selfie Era: The Whos, Wheres, and Hows of Selfies on Instagram. - Flávio Souza; Diego Couto de Las Casas; Vinícius Flores Zambaldi; SunBum Youn; Meeyoung Cha; Daniele Quercia; Virgílio A. F. Almeida (COSN, 2015)

Enhancing the Predictive Power with Time-Adjusted Residual Effect Simulations: Recency-Frequency and Time Regularity Measurements. - Doyeon Kwak; Emma Bergqvist; Se-Un Park; SunBum Youn (ICTC, 2023)