The TACO Approach for Traceability and Communication of Requirements. - Terje Sivertsen; Rune Fredriksen; Atoosa P.-J. Thunem; Jan-Erik Holmberg; Janne Valkonen; Olli Ventä; Jan-Ove Andersson (SAFECOMP, 2005)

Challenges of requirements engineering - A case study in nuclear energy domain. - Mikko Raatikainen; Tomi Männistö; Teemu Tommila; Janne Valkonen (RE, 2011)