| article html file updated | 7 February 2020 21:40 CET | Update | https://www.mdpi.com/2079-6412/7/1/13 |
| article html file updated | 22 September 2019 22:31 CEST | Update | - |
| article html file updated | 4 May 2019 14:45 CEST | Update | - |
| article html file updated | 7 February 2017 04:39 CET | Update | - |
| article html file updated | 18 January 2017 09:35 CET | Original file | - |
| article xml uploaded. | 18 January 2017 09:33 CET | Update | https://www.mdpi.com/2079-6412/7/1/13/xml |
| article xml uploaded. | 18 January 2017 09:33 CET | Original file | - |
| article pdf uploaded. | 18 January 2017 09:33 CET | Version of Record | https://www.mdpi.com/2079-6412/7/1/13/pdf |
