@misc{iiasa4659,
          volume = {5},
           title = {Do we have enough forests?},
       publisher = {IUFRO},
            year = {1996},
         journal = {IUFRO},
             url = {http://www.iufro.org/publications/series/occasional-papers/article/1996/01/01/occasional-paper-no-5-do-we-have-enough-forests/},
        abstract = {The paper investigates the area of forest we need and deals with questions such as which forest types are required and in what locations.},
          author = {Nilsson, S.}
}