Sources

Every source backing a fact on Symbian's own page, deduplicated — the same source backing several facts appears once.

• https://github.com/sven-mayer/mobilehci-statistics — https://github.com/sven-mayer/mobilehci-statistics
• https://personal.cis.strath.ac.uk/mark.dunlop/mobilehci01/ — https://personal.cis.strath.ac.uk/mark.dunlop/mobilehci01/