This brings back many memories.. I owe my early amazement of being able to "tell machine what you want and it will obey" to guys like that. Here is another nice piece that puts more context on that era and creation of Galaxija [1]
BTW, Voja Antonic left Belgrade few years ago, now living in US.[2]
[1] https://www.usgamer.net/articles/the-story-of-yugoslavias-di...