| article html file updated | 12 February 2020 17:51 CET | Update | https://www.mdpi.com/1996-1073/12/11/2157 |
| article html file updated | 21 October 2019 09:37 CEST | Update | N/A |
| article html file updated | 20 June 2019 16:43 CEST | Update | N/A |
| article html file updated | 5 June 2019 13:36 CEST | Original file | N/A |
| article pdf uploaded. | 5 June 2019 13:34 CEST | Version of Record | https://www.mdpi.com/1996-1073/12/11/2157/pdf |
| article xml uploaded. | 5 June 2019 13:34 CEST | Update | https://www.mdpi.com/1996-1073/12/11/2157/xml |
| article xml file uploaded | 5 June 2019 13:34 CEST | Original file | N/A |
