Here's a link to a pdf that has all the related articles, even one on Lincos, which was suppose to be the design for sending messages to aliens. Callimahos starts off with the same key exercises, AA B, AAA C, as Campaigne does but differs there after that. This could point out that Campaigne was using Lincos for a hypothetical exercise. But, even in Callimahos's article, he states that we are not alone and need to come up with a way to communicate to aliens. His basis of Lincos could be from actual messages but he doesn't present it that way.