Let's say I want to sell t-shirts, and I want to include the title of famous scientific papers. I am also considering adding some other visuals to the shirt; in some cases let's say I would consider modifying the title a bit, for example changing some letter to achieve some pun or reference to something else. (Like those shirts with "FBI: Federal B**bs Inspector" people sell at the beach)
One example is "The harmony of the world" or "Harmonices Mundi" (from the paper Harmonices Mundi by Johannes Kepler in 1619).
Another example is "Going deeper with Convolutions", published in 2015.
What about names that have identifiable words? Like "Fast R-CNN" or "BERT"?
How can I go about even answering this question? Is it about asking the original authors, the publishing journal or someone else? What if the original authors are dead or unreachable? And how is this different from people selling online courses with these names in the course titles like this one? Or if the title also appears in an open-source repository with commercial permission?
I am not looking for answers to every single question, but rather a general understanding and initial guidance on how to approach this.