Astrocytic Mechanisms Explaining Neural-Activity-Induced Shrinkage of Extraneuronal Space. - Ivar Østby; Leiv Øyehaug; Gaute T. Einevoll; Erlend A. Nagelhus; Erik Plahte; Thomas Zeuthen; Catherine M. Lloyd; Ole Petter Ottersen; Stig W. Omholt (PLoS Comput. Biol., 2009)