| article html file updated | 9 February 2020 18:55 CET | Update | https://www.mdpi.com/2079-9276/7/2/33 |
| article html file updated | 3 October 2019 22:25 CEST | Update | - |
| article html file updated | 30 April 2019 16:56 CEST | Update | - |
| article html file updated | 16 April 2019 17:23 CEST | Update | - |
| article html file updated | 30 March 2019 04:19 CET | Update | - |
| article html file updated | 26 June 2018 05:54 CEST | Update | - |
| article html file updated | 24 May 2018 14:19 CEST | Original file | - |
| article pdf uploaded. | 24 May 2018 14:17 CEST | Version of Record | https://www.mdpi.com/2079-9276/7/2/33/pdf |
| article xml uploaded. | 24 May 2018 14:17 CEST | Update | https://www.mdpi.com/2079-9276/7/2/33/xml |
| article xml file uploaded | 24 May 2018 14:17 CEST | Original file | - |
