Mobile Feedback System for Supporting Interactive Learning. - Harri Hämäläinen; Tomi Ruuska; Ari Happonen (WEBIST (3), 2007)

Enhanced RFID Security Method with Ownership Transfer. - Pekka Jäppinen; Harri Hämäläinen (CIS (2), 2008)

Using Wiki for Collaborative Studying and Maintaining Personal Learning Diary in a Computer Science Course. - Harri Hämäläinen; Jouni Ikonen; Jari Porras (ICALT, 2009)

Developing Technical E-portfolio Construction Process. - Harri Hämäläinen; Jouni Ikonen; Jari Porras (ICALT, 2009)

Use of Peer-Review System for Enhancing Learning of Programming. - Harri Hämäläinen; Jukka Tarkkonen; Kari Heikkinen; Jouni Ikonen; Jari Porras (ICALT, 2009)

MyPeerReview: an online peer-reviewing system for programming courses. - Ville Hyyrynen; Harri Hämäläinen; Jouni Ikonen; Jari Porras (Koli Calling, 2010)

Implementation of an embedded mobile device based feedback system for real-time audience feedback. - Antti Knutas; Harri Hämäläinen; Jouni Ikonen; Jari Porras (Comput. Appl. Eng. Educ., 2013)

Use of embedded RFID tags in concrete element supply chains. - Jouni Ikonen; Antti Knutas; Harri Hämäläinen; Marko Ihonen; Jari Porras; Tommi Kallonen (J. Inf. Technol. Constr., 2013)