iphone - handling the singleton object - Stack Overflow
Синглтон (Перевод с английского главы «Singleton» из книги «Pro Objective-C Design Patterns for iOS» Carlo Chung) / Хабр
Singleton Pattern – Positive and Negative Aspects - CodeProject
Singleton Design Pattern In Objective-C - YouTube
Using the Singleton Pattern in Objective-C – Duck Rowing
GitHub - cjhanson/Objective-C-Optimized-Singleton: A Singleton Macro that swaps method implementations at runtime so that only the initialization portion will require syncrhonization (lock)
Picking Apart Stack Overflow; What Bugs Developers The Most?
Singleton in iOS Objective C doesn't prevent more than one instance - Stack Overflow
The Swift Singleton Pattern. The Singletons pattern provide a… | by Stefano Frosoni | If let swift = Programming! | Medium