@article{Annika202118 title = "Fine and Ultrafine Particle Pollution Before and After a Smoking ban in the Catering Industry in Vienna", journal = "International Journal of Occupational and Environmental Medicine", volume = "1", number = "2", pages = "18 - 28", year = "2021", note = "", issn = "2690-0904", doi = "https://doi.org/10.14302/issn.2690-0904.ijoe-21-3736", url = "https://openaccesspub.orgijoe/article/1592", author = "K. Sima Annika and M. Szettele Anna-Lena and Neuberger Manfred", keywords = "Indoor air", keywords = "particulate matter", keywords = "fine particle mass", keywords = "ultrafine particle number", keywords = "particle surface", keywords = "smoke-free legislation", keywords = "smoking ban", keywords = "second-hand smoke", keywords = "catering industry", keywords = "Vienna" }