@article{BraunFrommGerberetal.2019,
  author    = {Markus Braun and Elsa-Luise Fromm and Alexander Gerber and Doris Klingelh{\"o}fer and Ruth M{\"u}ller and Jan David Alexander Groneberg},
  title     = {Particulate matter emissions of four types of one cigarette brand with and without additives : a laser spectrometric particulate matter analysis of secondhand smoke},
  journal   = {BMJ open},
  volume    = {9},
  number    = {1, e024400},
  pages     = {1 -- 7},
  doi       = {10.1136/bmjopen-2018-024400},
  year      = {2019},
}