[A smog situation in Budapest, January 22 and 23, 1970].
D000397:Air Pollution / Q000032:analysis*; D006814:Hungary; D012905:Smog; D013458:Sulfur Dioxide / Q000032:analysis*
D012905:Smog; D013458:Sulfur Dioxide
Eine Smog-Situation in Budapest am 22. und 23. Januar 1970.