Referências
Fitt law (Interaction Design Foundation)
Fitt law – the importance of size and distance in UI design
Fitt law – modeling movement time in HCI
Improving usability with Fitt law
When you shouldn’t use Fitts law to measure user experience
Interactive visualisation of Fitts law with javascript
Applying Fitt law to mobile interface design
How to drive conversions by implementing this simple design rule