| article html file updated | 7 February 2020 10:58 CET | Update | https://www.mdpi.com/2297-8747/21/3/27 |
| article html file updated | 21 September 2019 20:05 CEST | Update | - |
| article html file updated | 5 May 2019 11:27 CEST | Update | - |
| article html file updated | 27 March 2019 08:56 CET | Update | - |
| article html file updated | 29 June 2016 12:32 CEST | Original file | - |
| article xml uploaded. | 29 June 2016 11:51 CEST | Original file | https://www.mdpi.com/2297-8747/21/3/27/xml |
| article pdf uploaded. | 29 June 2016 11:51 CEST | Version of Record | https://www.mdpi.com/2297-8747/21/3/27/pdf |
