@article{93773,
      author = {Zaprianov, I. and Konstantinova, N.},
      url = {http://digitallibrary.un.org/record/93773},
      title = {R and D projects as optimal control in the knowledge  transfer systems : summary /},
      publisher = {UN,},
      recid = {93773},
      pages = {2 p.},
      address = {Geneva :. 1989-02-22},
      year = {1989},
      month = {Feb},
}