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References
- ↑ C.A.R. Hoare: Null References: The Billion Dollar Mistake, abstract of a talk at QCon London, 9–12 March 2009, available online
- ↑ Bertrand Meyer: Attached Types and their Application to Three Open Problems of Object-Oriented Programming, in ECOOP 2005 (Proceedings of European Conference on Object-Oriented Programming, Edinburgh, 25–29 July 2005), ed. Andrew Black, Lecture Notes in Computer Science 3586, Springer Verlag, 2005, pages 1-32, also available online
- ↑ Syme, Don. "Quote of the Week: "What can C# do that F# cannot?"" . Retrieved 7 September 2018.
- ↑ "Nullable reference types | Microsoft Docs" . Retrieved 12 March 2021.
- ↑ Moore, Kevin (2018-08-07). "Announcing Dart 2 Stable and the Dart Web Platform". Dart. Retrieved 2018-08-08.
- ↑ "Sound null safety | Dart" . Retrieved 12 March 2021.
- ↑ "Null safety—Kotlin" . Retrieved 12 March 2021.
- ↑ "Defining an Enum - The Rust Programming Language". doc.rust-lang.org. Retrieved 2021-06-26.
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