in this case try including related objects when exporting to DT file, But the content itself won't be transferred via DT or Test to Live.
If all works well now, the DT should add all attributes and references, so that you can copy your content using SQL.
If your reference list is a Category, then you'll be able to export and import the items using Excel. Bear in mind, that you'll need to install the Microsoft Access Database Engine if not already installed. Because it contains all common components for accessing Excel, Access and other files from Service Desk.
Of course you can also use export/import features in the Administration module too if you have access to Excel on the PC where you are running console.