Störstabile Identifikation dynamischer Systeme mit Mikrorechner. - Ralf Friedrich (1984)

Towards a New Role Model in Virtual Teams: the Effects of "Elective Leadership". - Ralf Friedrich; Udo Bleimann; Ingo Stengel; Paul Walsh (INC, 2010)

Verbesserung der Teamleistung bei virtuellen Teams durch das Virtual Team Maturity Model - VTMM®. - Ralf Friedrich; Andrea Keil (PVM, 2017)

An approach to evaluating the user experience of serious games. - Jonathan D. Moizer; Jonathan Lean; Elena Dell'Aquila; Paul Walsh; Alphonsus Keary; Deirdre O'Byrne; Andrea Di Ferdinando; Orazio Miglino; Ralf Friedrich; Roberta Asperges; Luigia Simona Sica (Comput. Educ., 2019)