Lifelong learning: Formal, non-formal and informal learning in the context of the use of problem-solving skills in technology-rich environments. - Henrik Nygren; Kari Nissinen; Raija Hämäläinen; Bram de Wever (Br. J. Educ. Technol., 2019)

What makes the difference - PIAAC as a resource for understanding the problem-solving skills of Europe's higher-education adults. - Raija Hämäläinen; Bram de Wever; Kari Nissinen; Sebastiano Cincinnato (Comput. Educ., 2019)

Understanding teaching professionals' digital competence: What do PIAAC and TALIS reveal about technology-related skills, attitudes, and knowledge? - Raija Hämäläinen; Kari Nissinen; Joonas Mannonen; Joni Lämsä; Kaisa Leino; Matti Taajamo (Comput. Hum. Behav., 2021)