| article html file updated | 9 February 2020 01:24 CET | Update | https://www.mdpi.com/1424-8220/18/1/68 |
| article html file updated | 29 September 2019 12:54 CEST | Update | - |
| article html file updated | 2 May 2019 05:41 CEST | Update | - |
| article html file updated | 18 April 2019 03:41 CEST | Update | - |
| article html file updated | 28 March 2019 11:41 CET | Update | - |
| article html file updated | 2 February 2018 10:26 CET | Update | - |
| article html file updated | 4 January 2018 16:36 CET | Update | - |
| article xml uploaded. | 4 January 2018 16:35 CET | Update | https://www.mdpi.com/1424-8220/18/1/68/xml |
| article pdf uploaded. | 4 January 2018 16:35 CET | Updated version of record | https://www.mdpi.com/1424-8220/18/1/68/pdf |
| article html file updated | 2 January 2018 20:46 CET | Update | - |
| article pdf uploaded. | 2 January 2018 11:31 CET | Updated version of record | https://www.mdpi.com/1424-8220/18/1/68/pdf-vor |
| article html file updated | 28 December 2017 12:01 CET | Original file | - |
| article xml uploaded. | 28 December 2017 12:00 CET | Update | - |
| article pdf uploaded. | 28 December 2017 12:00 CET | Version of Record | https://www.mdpi.com/1424-8220/18/1/68/pdf-vor |
| article xml uploaded. | 28 December 2017 12:00 CET | Original file | - |
