TY - GEN TY - GEN T1 - A PQ-formulation for ventilation duct system flow analyses : theory T2 - TKK Structural Engineering and Building Technology Publications A1 - Salonen, Eero-Matti, 1937- A2 - Holopainen, Rauno, 1963- LA - eng PP - Espoo PB - Helsinki University of Technology YR - 2009 UL - https://kansalliskirjasto.finna.fi/Record/fikka.4100096 SN - 978-951-22-9693-4 nidottu ER -