| article html file updated | 9 February 2020 19:10 CET | Update | https://www.mdpi.com/2076-3921/7/6/73 |
| article html file updated | 3 October 2019 23:56 CEST | Update | - |
| article html file updated | 30 April 2019 16:24 CEST | Update | - |
| article html file updated | 16 April 2019 16:52 CEST | Update | - |
| article html file updated | 30 March 2019 04:55 CET | Update | - |
| article html file updated | 26 June 2018 04:46 CEST | Update | - |
| article html file updated | 26 May 2018 10:42 CEST | Original file | - |
| article pdf uploaded. | 26 May 2018 10:41 CEST | Version of Record | https://www.mdpi.com/2076-3921/7/6/73/pdf |
| article xml uploaded. | 26 May 2018 10:41 CEST | Update | https://www.mdpi.com/2076-3921/7/6/73/xml |
| article xml file uploaded | 26 May 2018 10:41 CEST | Original file | - |
