HOPKINS, D. et al. Re. Paper by Dhakal, Khare and Mander “Economic payback of improved detailing for concrete buildings with precast hollow-core floors” in NZSEE Bulletin Volume 39, No 2, June 2006, pp106-119. Bulletin of the New Zealand Society for Earthquake Engineering, v. 39, n. 3, p. 176–181, 30 Sep.2006.