You'll probably have to hire a lawyer to go through those foreign rights contracts. (annerallen.com)
One of the obstacles that subscription - based models have faced is the way publishers and authors are compensated, since most digital rights contracts don't address page view - based royalties. (goodereader.com)
Here's a helpful article on the distinction between self - publishing services and traditional publishers, which includes some publishing rights contract clauses to watch out for. (thebalancecareers.com)