| article html file updated | 9 February 2020 03:11 CET | Update | https://www.mdpi.com/1660-3397/16/1/31 |
| article html file updated | 29 September 2019 22:51 CEST | Update | - |
| article html file updated | 2 May 2019 01:59 CEST | Update | - |
| article html file updated | 18 April 2019 00:16 CEST | Update | - |
| article html file updated | 28 March 2019 15:52 CET | Update | - |
| article html file updated | 1 February 2018 08:16 CET | Update | - |
| article html file updated | 16 January 2018 04:30 CET | Original file | - |
| article xml uploaded. | 16 January 2018 04:29 CET | Update | https://www.mdpi.com/1660-3397/16/1/31/xml |
| article xml uploaded. | 16 January 2018 04:29 CET | Original file | - |
| article pdf uploaded. | 16 January 2018 04:29 CET | Version of Record | https://www.mdpi.com/1660-3397/16/1/31/pdf |
