| article html file updated | 9 February 2020 03:29 CET | Update | https://www.mdpi.com/2075-4701/8/1/67 |
| article html file updated | 30 September 2019 00:38 CEST | Update | - |
| article html file updated | 2 May 2019 01:23 CEST | Update | - |
| article html file updated | 17 April 2019 23:42 CEST | Update | - |
| article html file updated | 28 March 2019 16:32 CET | Update | - |
| article html file updated | 9 February 2018 11:06 CET | Update | - |
| article html file updated | 1 February 2018 12:35 CET | Update | - |
| article html file updated | 18 January 2018 09:38 CET | Original file | - |
| article xml uploaded. | 18 January 2018 09:36 CET | Update | https://www.mdpi.com/2075-4701/8/1/67/xml |
| article xml uploaded. | 18 January 2018 09:36 CET | Original file | - |
| article pdf uploaded. | 18 January 2018 09:36 CET | Version of Record | https://www.mdpi.com/2075-4701/8/1/67/pdf |
