C# - Vorlage für Singleton Pattern

/// <summary>
/// Singleton
/// </summary>
public sealed class Singleton
{
    private readonly static Singleton SingletonInstance = new Singleton();

    /// <summary>
    /// Gets the get the Singleton instance.
    /// </summary>
    /// <value>The get instance.</value>
    public static Singleton GetInstance
    {
        get
        {
            return SingletonInstance;
        }
    }

    private Singleton()
    {
        throw new NotImplementedException();
    }
}