@article{24257,
  author = {Seema Bhangar and Nasim A Mullen and Susanne V Hering and Nathan M Kreisberg and William W Nazaroff},
  title = {Ultrafine particle concentrations and exposure in seven residences in northern California},
  year = {2011},
  journal = {Indoor Air},
  volume = {21},
  pages = {132-144.},
  month = {01/2011},
  language = {eng},
}