| article html file updated | 9 February 2020 16:48 CET | Update | https://www.mdpi.com/1999-4907/9/5/255 |
| article html file updated | 3 October 2019 09:00 CEST | Update | N/A |
| article html file updated | 30 April 2019 21:33 CEST | Update | N/A |
| article html file updated | 16 April 2019 22:01 CEST | Update | N/A |
| article html file updated | 29 March 2019 22:53 CET | Update | N/A |
| article html file updated | 30 May 2018 18:05 CEST | Update | N/A |
| article html file updated | 8 May 2018 13:19 CEST | Original file | N/A |
| article pdf uploaded. | 8 May 2018 13:18 CEST | Version of Record | https://www.mdpi.com/1999-4907/9/5/255/pdf |
| article xml uploaded. | 8 May 2018 13:18 CEST | Update | https://www.mdpi.com/1999-4907/9/5/255/xml |
| article xml file uploaded | 8 May 2018 13:18 CEST | Original file | N/A |