| article html file updated | 9 February 2020 18:16 CET | Update | https://www.mdpi.com/2079-9721/6/2/41 |
| article html file updated | 30 April 2019 18:25 CEST | Update | N/A |
| article html file updated | 16 April 2019 18:51 CEST | Update | N/A |
| article html file updated | 30 March 2019 02:32 CET | Update | N/A |
| article html file updated | 19 May 2018 08:10 CEST | Original file | N/A |
| article pdf uploaded. | 19 May 2018 08:09 CEST | Version of Record | https://www.mdpi.com/2079-9721/6/2/41/pdf |
| article xml uploaded. | 19 May 2018 08:09 CEST | Update | https://www.mdpi.com/2079-9721/6/2/41/xml |
| article xml file uploaded | 19 May 2018 08:09 CEST | Original file | N/A |
