| article html file updated | 9 February 2020 04:19 CET | Update | https://www.mdpi.com/2075-163X/8/2/39 |
| article html file updated | 30 September 2019 05:21 CEST | Update | - |
| article html file updated | 1 May 2019 23:36 CEST | Update | - |
| article html file updated | 17 April 2019 22:11 CEST | Update | - |
| article html file updated | 28 March 2019 18:19 CET | Update | - |
| article html file updated | 14 March 2018 15:01 CET | Update | - |
| article html file updated | 25 January 2018 13:01 CET | Original file | - |
| article xml uploaded. | 25 January 2018 12:59 CET | Update | https://www.mdpi.com/2075-163X/8/2/39/xml |
| article xml uploaded. | 25 January 2018 12:59 CET | Update | - |
| article xml uploaded. | 25 January 2018 12:59 CET | Original file | - |
| article pdf uploaded. | 25 January 2018 12:59 CET | Version of Record | https://www.mdpi.com/2075-163X/8/2/39/pdf |
