The character reached the print run of 100,000, so in 1978 the local publisher (Dnevnik from Novi Sad) decided to produce its own licensed material, colloquially known as "YU Blek". The writers were Petar Aladžić, Predrag Ivanović, Miodrag Milanović , Ivica Mitrović and Svetozar Obradović. The list of artists included Stevan Brajdić, Milorad Žarić, Miodrag Ivanović, Predrag Ivanović, D. Ivković, Branislav Kerac, Bojan Kerzan, Pavel Koza, Vladimir Krstić, Spasoje Kulauzov, Marinko Lebović, B. Ljubičić, Stevo Maslek, Nikola Maslovara, Radič Mijatović, Željko Mitrović, Ahmet Muminović, Slavko Pejak, Dušan Pivac, Branko Plavšić, Zdravko Popović, Sibin Slavković (pen name "S. Žunjević"), Ljubomir Filipov and Adam Čurdinjaković. More than 70 episodes were produced, including a sticker album. The strip inspired "Il Grande Blek", a 1987 film directed by Giuseppe Piccioni about a boy who loves comics.