COOK, D.; DHAKAL, R. P.; MANDER, J. B. 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. 4, p. 215–220, 31 Dec.2006.