| article html file updated | 9 February 2020 20:56 CET | Update | https://www.mdpi.com/2079-4991/8/6/421 |
| article html file updated | 4 October 2019 11:05 CEST | Update | N/A |
| article html file updated | 30 April 2019 12:11 CEST | Update | N/A |
| article html file updated | 16 April 2019 12:36 CEST | Update | N/A |
| article html file updated | 16 April 2019 07:18 CEST | Update | N/A |
| article html file updated | 30 March 2019 09:28 CET | Update | N/A |
| article html file updated | 27 June 2018 18:19 CEST | Update | N/A |
| article html file updated | 10 June 2018 12:01 CEST | Original file | N/A |
| article pdf uploaded. | 10 June 2018 11:59 CEST | Updated version of record | https://www.mdpi.com/2079-4991/8/6/421/pdf |
| article xml uploaded. | 10 June 2018 11:59 CEST | Update | https://www.mdpi.com/2079-4991/8/6/421/xml |
| article xml file uploaded | 10 June 2018 11:59 CEST | Update | N/A |
| article xml file uploaded | 10 June 2018 10:45 CEST | Original file | N/A |