| article html file updated | 8 February 2020 00:42 CET | Update | https://www.mdpi.com/2079-6374/7/1/13 |
| article html file updated | 23 September 2019 15:28 CEST | Update | - |
| article html file updated | 4 May 2019 08:23 CEST | Update | - |
| article html file updated | 30 March 2017 05:25 CEST | Update | - |
| article html file updated | 3 March 2017 15:01 CET | Original file | - |
| article xml uploaded. | 3 March 2017 15:00 CET | Update | https://www.mdpi.com/2079-6374/7/1/13/xml |
| article pdf uploaded. | 3 March 2017 15:00 CET | Version of Record | https://www.mdpi.com/2079-6374/7/1/13/pdf |
