@article{5209, year={1991}, issn={}, journal={PLANNING THEORY}, number={5-6}, volume={}, doi={}, title={Improvement of planning approaches as applied to evolving market environments}, abstract={} url={http://www.francoangeli.it/Riviste/Scheda_rivista.aspx?idArticolo=5209}, author={E. Mukhhanova} pages={}, language={IT}}