| article html file updated | 8 February 2020 19:12 CET | Update | https://www.mdpi.com/2218-1989/7/4/53 |
| article html file updated | 27 September 2019 22:44 CEST | Update | - |
| article html file updated | 2 May 2019 19:35 CEST | Update | - |
| article html file updated | 2 January 2018 20:24 CET | Update | - |
| article html file updated | 25 October 2017 07:22 CEST | Update | - |
| article xml uploaded. | 25 October 2017 07:21 CEST | Update | https://www.mdpi.com/2218-1989/7/4/53/xml |
| article pdf uploaded. | 25 October 2017 07:21 CEST | Updated version of record | https://www.mdpi.com/2218-1989/7/4/53/pdf |
| article html file updated | 24 October 2017 10:44 CEST | Original file | - |
| article xml uploaded. | 24 October 2017 10:43 CEST | Original file | - |
| article pdf uploaded. | 24 October 2017 10:43 CEST | Updated version of record | https://www.mdpi.com/2218-1989/7/4/53/pdf-vor |
| article pdf uploaded. | 23 October 2017 15:46 CEST | Version of Record | https://www.mdpi.com/2218-1989/7/4/53/pdf-vor |
