| article html file updated | 9 February 2020 02:07 CET | Update | https://www.mdpi.com/1424-8220/18/1/138 |
| article html file updated | 29 September 2019 16:55 CEST | Update | - |
| article html file updated | 2 May 2019 04:10 CEST | Update | - |
| article html file updated | 18 April 2019 02:16 CEST | Update | - |
| article html file updated | 28 March 2019 13:24 CET | Update | - |
| article html file updated | 2 February 2018 10:43 CET | Update | - |
| article html file updated | 5 January 2018 14:40 CET | Original file | - |
| article xml uploaded. | 5 January 2018 14:39 CET | Original file | https://www.mdpi.com/1424-8220/18/1/138/xml |
| article pdf uploaded. | 5 January 2018 14:39 CET | Version of Record | https://www.mdpi.com/1424-8220/18/1/138/pdf |
