| article html file updated | 12 February 2020 17:13 CET | Update | https://www.mdpi.com/2076-3921/8/6/157 |
| article html file updated | 21 October 2019 05:42 CEST | Update | - |
| article html file updated | 3 June 2019 10:08 CEST | Original file | - |
| article pdf uploaded. | 3 June 2019 10:07 CEST | Version of Record | https://www.mdpi.com/2076-3921/8/6/157/pdf |
| article xml uploaded. | 3 June 2019 10:07 CEST | Update | https://www.mdpi.com/2076-3921/8/6/157/xml |
| article xml file uploaded | 3 June 2019 10:07 CEST | Original file | - |
