https://researchportal.helsinki.fi/sv/persons/erkka-t-rinne/
Erkka T Rinne - Helsingfors universitet
rinnehelsingforsuniversitet
https://play.google.com/store/apps/details?id=com.enormouselk.multitimer
Erkka's Multi Timer - Apps on Google Play
Multi Timer for Enduro, Motocross and other events
timer appson googlemultiplay