Sources

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

• https://dl.acm.org/action/showFmPdf?doi=10.1145%2F1152215 — https://dl.acm.org/action/showFmPdf?doi=10.1145%2F1152215
• https://dl.acm.org/action/showFmPdf?doi=10.1145%2F2371664 — https://dl.acm.org/action/showFmPdf?doi=10.1145%2F2371664