Resumen de A statistical examination of the properties and evolution of libre software
Israel Herráiz Tabernero 
How and why does software wolve? this question has been under study since 40 years ago, and it is still a subjet of controversy . This thesis prevents the results of an empirical study bases on datathesis containing information about thuousands of libre (three/ open source) software proyects: it exclusively uses publicly avarable data sources, which makes it possible that all the results are redeteable and verifiable by third parties.
