| article html file updated | 9 February 2020 04:41 CET | Update | https://www.mdpi.com/2075-5309/8/2/18 |
| article html file updated | 30 September 2019 07:33 CEST | Update | - |
| article html file updated | 1 May 2019 22:50 CEST | Update | - |
| article html file updated | 17 April 2019 21:29 CEST | Update | - |
| article html file updated | 28 March 2019 19:06 CET | Update | - |
| article html file updated | 14 March 2018 11:07 CET | Update | - |
| article html file updated | 29 January 2018 08:18 CET | Original file | - |
| article xml uploaded. | 29 January 2018 08:17 CET | Update | https://www.mdpi.com/2075-5309/8/2/18/xml |
| article xml uploaded. | 29 January 2018 08:17 CET | Original file | - |
| article pdf uploaded. | 29 January 2018 08:17 CET | Version of Record | https://www.mdpi.com/2075-5309/8/2/18/pdf |
