Life-cycle analysis of plumbing system and energy conservation in the renovated apartment buildings in TallinnTalve, Siret; Suurkask, Valdu; Kroonström, JüriWater Supply and Drainage for Buildings : '98 CIB-W62 Symposium : Rotterdam, The Netherlands, September 21-23, 19981998 / p. E2-0, E2-2 - E2-9 : ill