| article html file updated | 7 February 2020 09:41 CET | Update | https://www.mdpi.com/2297-8739/3/2/17 |
| article html file updated | 5 May 2019 13:50 CEST | Update | N/A |
| article html file updated | 27 March 2019 06:33 CET | Update | N/A |
| article html file updated | 1 July 2016 12:50 CEST | Update | N/A |
| article html file updated | 3 June 2016 08:30 CEST | Original file | N/A |
| article xml uploaded. | 3 June 2016 08:29 CEST | Original file | https://www.mdpi.com/2297-8739/3/2/17/xml |
| article pdf uploaded. | 3 June 2016 08:29 CEST | Version of Record | https://www.mdpi.com/2297-8739/3/2/17/pdf |
