| article html file updated | 7 July 2020 07:56 CEST | Update | https://www.mdpi.com/2076-0752/9/2/42 |
| article html file updated | 1 April 2020 17:06 CEST | Original file | N/A |
| article pdf uploaded. | 1 April 2020 10:59 CEST | Updated version of record | https://www.mdpi.com/2076-0752/9/2/42/pdf |
| article xml uploaded. | 1 April 2020 10:59 CEST | Update | https://www.mdpi.com/2076-0752/9/2/42/xml |
| article xml file uploaded | 1 April 2020 10:59 CEST | Update | N/A |
| article pdf uploaded. | 26 March 2020 13:11 CET | Version of Record | https://www.mdpi.com/2076-0752/9/2/42/pdf-vor |
| article xml file uploaded | 26 March 2020 13:11 CET | Original file | N/A |
