NumminenV09'

BibTeX

@article{DBLP:journals/jasis/NumminenV09,
  author    = {Piritta Numminen and
               Pertti Vakkari},
  title     = {Question types in public libraries' digital reference service
               in Finland: Comparing 1999 and 2006},
  journal   = {JASIST},
  volume    = {60},
  number    = {6},
  year      = {2009},
  pages     = {1249-1257},
  ee        = {http://dx.doi.org/10.1002/asi.21047},
  bibsource = {DBLP, http://dblp.uni-trier.de}
}