Complex sentence: His work has also been featured in the science fiction magazine "Tähtivaeltaja", the Finnish "Conan" magazine and twice in the war comics magazine "Korkeajännitys": a western story and one story set in the Finnish War.
Split into simpler sentences: His work has also been featured in the science fiction magazine "Tähtivaeltaja" as well as the Finnish "Conan" magazine. He has also made two stories for war comics magazine "Korkeajännitys": a western story and one story set in Finnish War.