Allenby, G.M.G.M.AllenbyLeone, R.P.R.P.LeoneLICHUNG JEN2020-02-142020-02-141999https://scholars.lib.ntu.edu.tw/handle/123456789/459193A Dynamic Model of Purchase Timing with Application to Direct Marketingjournal article10.1080/01621459.1999.104741272-s2.0-1542532797https://www.scopus.com/inward/record.uri?eid=2-s2.0-1542532797&doi=10.1080%2f01621459.1999.10474127&partnerID=40&md5=727124d623037683b67bc0077fb181da