Helinä Häkkänen

Driver Sleepiness-Related Problems, Health Status, and Prolonged Driving Among Professional Heavy-Vehicle Drivers

Heikki Summala, Helinä Häkkänen, H. Summala, 2000 .

The Structure of Crime-Scene Actions in Finnish Homicides

David V. Canter, Helinä Häkkänen, Pekka Santtila, 2001 .

Nuorten aikomus hankkia ajokortti

Virpi Britschgi, Helinä Häkkänen, Heikki Kanner, 2003 .

EXPERTISE AND DECISION‐MAKING IN THE LINKING OF CAR CRIME SERIES

Helinä Häkkänen, Pekka Santtila, P. Santtila, 2004 .

Juvenile firesetters: Crime scene actions and offender characteristics

Helinä Häkkänen, Pekka Santtila, Laurence Alison, 2003 .

Crime scene actions and offender characteristics in arsons

Helinä Häkkänen, Pekka Santtila, P. Santtila, 2004 .

Finnish Bomb Threats: Offence and Offender Characteristics

Helinä Häkkänen, H. Häkkänen, 2006 .

Classifying homicide offenders and predicting their characteristics from crime scene behavior.

David Canter, Helinä Häkkänen, Pekka Santtila, 2003, Scandinavian journal of psychology.