TY - JOUR PY - 1992 SN - T1 - Opening the dialogues: a letter to Luigi Mazza JO - PLANNING THEORY DA - 1/1/0001 12:00:00 AM DO - UR - http://www.francoangeli.it/Riviste/Scheda_rivista.aspx?idArticolo=5222 AU - Allen, Judith IS - 7-8 VL - LA - EN AB - PB - FrancoAngeli ER -