Sources

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

• https://dl.acm.org/action/showFmPdf?doi=10.1145%2F1409240 — https://dl.acm.org/action/showFmPdf?doi=10.1145%2F1409240
• https://dl.acm.org/doi/proceedings/10.1145/1409240 — https://dl.acm.org/doi/proceedings/10.1145/1409240