| article html file updated | 9 February 2020 15:52 CET | Update | https://www.mdpi.com/2079-9268/8/2/12 |
| article html file updated | 3 October 2019 03:03 CEST | Update | - |
| article html file updated | 30 April 2019 23:30 CEST | Update | - |
| article html file updated | 17 April 2019 00:06 CEST | Update | - |
| article html file updated | 29 March 2019 20:33 CET | Update | - |
| article html file updated | 30 April 2018 13:04 CEST | Original file | - |
| article pdf uploaded. | 30 April 2018 13:02 CEST | Version of Record | https://www.mdpi.com/2079-9268/8/2/12/pdf |
| article xml uploaded. | 30 April 2018 13:02 CEST | Update | https://www.mdpi.com/2079-9268/8/2/12/xml |
| article xml file uploaded | 30 April 2018 13:02 CEST | Original file | - |
