A Ground Truth For Half A Million Musical Incipits. - Rainer Typke; Marc den Hoed; Justin de Nooijer; Frans Wiering; Remco C. Veltkamp (J. Digit. Inf. Manag., 2005)

A Framework for Exploring Relationships Between Online Community Characteristics and Regulation Principles. - Eleonore ten Thij; Justin de Nooijer (SAW, 2007)