Interference considerations for the time division duplex mode of the UMTS Terrestrial Radio Access. - Harri Holma; Sanna Heikkinen; Otto-Aleksanteri Lehtinen; Antti Toskala (IEEE J. Sel. Areas Commun., 2000)

Identifying IT Service Management Challenges: A Case Study in Two IT Service Provider Companies. - Sanna Heikkinen; Marko Jäntti (DEXA Workshops, 2012)

Establishing a Continual Service Improvement Model: A Case Study. - Sanna Heikkinen; Marko Jäntti (EuroSPI, 2012)

Exploring the Impact of IT Service Management Process Improvement Initiatives: A Case Study Approach. - Marko Jäntti; Terry Rout; Lian Wen; Sanna Heikkinen; Aileen Cater-Steel (SPICE, 2013)

Do autonomously motivated students benefit from collaborative learning methods? - Mikko Honkala; Sanna Heikkinen; Anu Lehtovuori; Johanna Leppävirta (EDUCON, 2015)

Assignments, assessment and feedback in Engineering Graphics courses. - Peeter Kukk; Sanna Heikkinen (EDUCON, 2015)

Assignments and Grading in Engineering Graphics Courses. - Peeter Kukk; Sanna Heikkinen (Int. J. Eng. Pedagog., 2015)

Studying Continual Service Improvement and Monitoring the Quality of ITSM. - Sanna Heikkinen; Marko Jäntti (QUATIC, 2019)

Applying Continual Service Improvement Practices to Study Quality of Healthcare Information System Services: A Case Study. - Sanna Heikkinen; Marko Jäntti; Kaija Saranto (QUATIC, 2020)

Continual Service Improvement: A Systematic Literature Review. - Sanna Heikkinen; Marko Jäntti; Markku Tukiainen (QUATIC, 2023)

Digitalization Impact Evaluation Model: A Case Study. - Juhani Heikka; Sanna Heikkinen; Marika Iivari; Timo Koivumäki (QUATIC, 2024)