| article html file updated | 9 February 2020 05:33 CET | Update | https://www.mdpi.com/2305-6304/6/1/12 |
| article html file updated | 30 September 2019 12:54 CEST | Update | - |
| article html file updated | 1 May 2019 20:54 CEST | Update | - |
| article html file updated | 17 April 2019 19:51 CEST | Update | - |
| article html file updated | 28 March 2019 20:59 CET | Update | - |
| article html file updated | 28 March 2018 03:44 CEST | Update | - |
| article html file updated | 5 February 2018 12:46 CET | Original file | - |
| article xml uploaded. | 5 February 2018 12:45 CET | Update | https://www.mdpi.com/2305-6304/6/1/12/xml |
| article xml uploaded. | 5 February 2018 12:45 CET | Original file | - |
| article pdf uploaded. | 5 February 2018 12:45 CET | Version of Record | https://www.mdpi.com/2305-6304/6/1/12/pdf |
