Development needs and means of product innovation management in Finnish manufacturing companies. - Petteri Piippo; Takaya Ichimura; Hannu Kärkkäinen; Markku Tuominen (Int. J. Technol. Manag., 2002)

Comparative study of product innovation systems. - Takaya Ichimura; Kazuyoshi Ishii; Markku Tuominen; Petteri Piippo (Int. J. Technol. Manag., 2003)

A tool for systematic assessment of customer needs in industrial markets. - Hannu Kärkkäinen; Kalle Elfvengren; Markku Tuominen; Petteri Piippo (Int. J. Technol. Manag., 2003)

Intranet based system for a product innovation management process. - Petteri Piippo; Jouni Koivuniemi; Hannu Kärkkäinen; Markku Tuominen; Takaya Ichimura (Int. J. Technol. Manag., 2003)