| article html file updated | 12 February 2020 01:14 CET | Update | https://www.mdpi.com/2077-0383/8/4/421 |
| article html file updated | 17 October 2019 07:15 CEST | Update | - |
| article html file updated | 25 April 2019 20:40 CEST | Update | - |
| article html file updated | 12 April 2019 11:02 CEST | Original file | - |
| article pdf uploaded. | 12 April 2019 11:01 CEST | Updated version of record | https://www.mdpi.com/2077-0383/8/4/421/pdf |
| article xml uploaded. | 12 April 2019 11:01 CEST | Update | https://www.mdpi.com/2077-0383/8/4/421/xml |
| article xml file uploaded | 12 April 2019 11:01 CEST | Update | - |
| article pdf uploaded. | 27 March 2019 16:11 CET | Version of Record | https://www.mdpi.com/2077-0383/8/4/421/pdf-vor |
| article xml file uploaded | 27 March 2019 16:11 CET | Original file | - |
