| article html file updated | 9 February 2020 14:15 CET | Update | https://www.mdpi.com/2079-8954/6/2/12 |
| article html file updated | 1 May 2019 02:38 CEST | Update | - |
| article html file updated | 17 April 2019 03:07 CEST | Update | - |
| article html file updated | 29 March 2019 16:40 CET | Update | - |
| article html file updated | 26 June 2018 04:48 CEST | Update | - |
| article html file updated | 18 April 2018 05:10 CEST | Original file | - |
| article pdf uploaded. | 18 April 2018 05:09 CEST | Version of Record | https://www.mdpi.com/2079-8954/6/2/12/pdf |
| article xml uploaded. | 18 April 2018 05:09 CEST | Update | https://www.mdpi.com/2079-8954/6/2/12/xml |
| article xml file uploaded | 18 April 2018 05:09 CEST | Original file | - |
