According to Professors James Crawford and Alan Boyle, who set out their opinions in the paper, Scotland would be treated as a new country, having to renegotiate its relationship with world bodies.
The Scottish Government issued a paper last week, which assuming a Yes vote occurred in autumn 2014, could see negotiations between Scottish ministers and the UK Government, EU and international organisations concluded by March 2016.
Today's publication does not include specific advice from the European Commission on the implications of Scottish independence in the EU.
More top news
A wet and chilly night for many, leading into a cloudy, rainy morning tomorrow. Expect some fog patches.
Angelina Jolie has spoken of how a war hero and Olympic athlete inspired her to embrace challenges at the UK premiere of her latest film.
As the government pushes for a cap on EU migrants, one businessman has called it 'nonsense'. So what happens if reform is not possible?