| article html file updated | 7 February 2020 11:52 CET | Update | https://www.mdpi.com/2297-8747/21/3/29 |
| article html file updated | 5 May 2019 09:51 CEST | Update | N/A |
| article html file updated | 27 March 2019 10:36 CET | Update | N/A |
| article html file updated | 18 July 2016 11:55 CEST | Original file | N/A |
| article xml uploaded. | 18 July 2016 11:54 CEST | Original file | https://www.mdpi.com/2297-8747/21/3/29/xml |
| article pdf uploaded. | 18 July 2016 11:54 CEST | Version of Record | https://www.mdpi.com/2297-8747/21/3/29/pdf |
