| article html file updated | 9 February 2020 02:46 CET | Update | https://www.mdpi.com/2075-163X/8/1/15 |
| article html file updated | 29 September 2019 20:22 CEST | Update | - |
| article html file updated | 2 May 2019 02:51 CEST | Update | - |
| article html file updated | 18 April 2019 01:03 CEST | Update | - |
| article html file updated | 28 March 2019 14:52 CET | Update | - |
| article html file updated | 1 February 2018 09:43 CET | Update | - |
| article html file updated | 11 January 2018 18:34 CET | Original file | - |
| article xml uploaded. | 11 January 2018 18:32 CET | Update | https://www.mdpi.com/2075-163X/8/1/15/xml |
| article xml uploaded. | 11 January 2018 18:32 CET | Update | - |
| article xml uploaded. | 11 January 2018 18:32 CET | Original file | - |
| article pdf uploaded. | 11 January 2018 18:32 CET | Version of Record | https://www.mdpi.com/2075-163X/8/1/15/pdf |
