| article html file updated | 12 February 2020 16:11 CET | Update | https://www.mdpi.com/2079-9268/9/2/18 |
| article html file updated | 20 October 2019 23:22 CEST | Update | N/A |
| article html file updated | 13 June 2019 05:51 CEST | Original file | N/A |
| article pdf uploaded. | 13 June 2019 05:49 CEST | Updated version of record | https://www.mdpi.com/2079-9268/9/2/18/pdf |
| article xml uploaded. | 13 June 2019 05:49 CEST | Update | https://www.mdpi.com/2079-9268/9/2/18/xml |
| article xml file uploaded | 13 June 2019 05:49 CEST | Update | N/A |
| article pdf uploaded. | 29 May 2019 14:42 CEST | Version of Record | https://www.mdpi.com/2079-9268/9/2/18/pdf-vor |
| article xml file uploaded | 29 May 2019 14:42 CEST | Original file | N/A |
