• Research demand of old apartment buildings in EstoniaKalamees, Targo; Ilomets, Simo; Arumägi, Endrik; Kuusk, Kalle; Liias, Roode; Kõiv, Teet-Andrus; Õiger, KarlIEA Annex 55 (RAP-RETRO) : working meeting : Holzkirchen, Germany, 15-16 April, 20102010 / [8] p