@ARTICLE{mutikainen2015,
  author = {H. Mutikainen, N. Strokina, T. Eerola, L. Lensu, H. K{\"a}lvi{\"a}inen, and J. K\"ayhk\"o},
  title = {Online measurement of the bubble size distribution in medium-consistency oxygen delignification.},
  journal = {Appita Journal},
  year = {2015},
volume = {68},
  pages = {159--164}
}