| article html file updated | 14 February 2020 02:50 CET | Update | https://www.mdpi.com/2218-6581/8/4/89 |
| article html file updated | 31 December 2019 00:40 CET | Update | N/A |
| article html file updated | 30 October 2019 02:27 CET | Update | N/A |
| article pdf uploaded. | 30 October 2019 02:25 CET | Updated version of record | https://www.mdpi.com/2218-6581/8/4/89/pdf |
| article xml uploaded. | 30 October 2019 02:25 CET | Update | https://www.mdpi.com/2218-6581/8/4/89/xml |
| article xml file uploaded | 30 October 2019 02:25 CET | Update | N/A |
| article html file updated | 22 October 2019 09:56 CEST | Original file | N/A |
| article pdf uploaded. | 22 October 2019 09:55 CEST | Version of Record | https://www.mdpi.com/2218-6581/8/4/89/pdf-vor |
| article xml uploaded. | 22 October 2019 09:55 CEST | Update | N/A |
| article xml file uploaded | 22 October 2019 09:54 CEST | Original file | N/A |
