@article{WelfensWisniewski2005,
  author    = {Welfens, Maria J. and Wisniewski, Jacek},
  title     = {Wybrane problemy zr{\´o}wnowazonej konsumpcji},
  journal   = {Ekonomia i srodowisko},
  volume    = {28},
  number    = {2},
  pages     = {27 -- 48},
  year      = {2005},
  language  = {pl}
}