| article html file updated | 7 February 2020 08:38 CET | Update | https://www.mdpi.com/2297-8739/3/2/14 |
| article html file updated | 5 May 2019 15:55 CEST | Update | - |
| article html file updated | 27 March 2019 04:35 CET | Update | - |
| article html file updated | 1 July 2016 12:49 CEST | Update | - |
| article html file updated | 16 May 2016 23:01 CEST | Original file | - |
| article xml uploaded. | 13 May 2016 09:31 CEST | Original file | https://www.mdpi.com/2297-8739/3/2/14/xml |
| article pdf uploaded. | 13 May 2016 09:31 CEST | Version of Record | https://www.mdpi.com/2297-8739/3/2/14/pdf |
