Is cloned code older than non-cloned code?

Jens Krinke. Is cloned code older than non-cloned code?. In James R. Cordy, Katsuro Inoue, Stanislaw Jarzabek, Rainer Koschke, editors, Proceeding of the 5th ICSE International Workshop on Software Clones, IWSC 2011, Waikiki, Honolulu, HI, USA, May 23, 2011. pages 28-33, ACM, 2011. [doi]

Abstract

Abstract is missing.