partial void DeleteLIBRO(LIBRO instance);
 partial void UpdateLIBRO(LIBRO instance);
		private void detach_LIBROs(LIBRO entity)
		{
			this.SendPropertyChanging();
			entity.ADMINISTRADOR = null;
		}
 partial void InsertLIBRO(LIBRO instance);
		private void attach_LIBROs(LIBRO entity)
		{
			this.SendPropertyChanging();
			entity.AUTOR = this;
		}