| article html file updated | 9 February 2020 09:11 CET | Update | https://www.mdpi.com/2227-7102/8/1/36 |
| article html file updated | 1 October 2019 10:01 CEST | Update | - |
| article html file updated | 1 May 2019 13:09 CEST | Update | - |
| article html file updated | 17 April 2019 12:49 CEST | Update | - |
| article html file updated | 29 March 2019 05:07 CET | Update | - |
| article html file updated | 27 March 2018 15:22 CEST | Update | - |
| article html file updated | 9 March 2018 02:56 CET | Original file | - |
| article xml uploaded. | 9 March 2018 02:55 CET | Update | https://www.mdpi.com/2227-7102/8/1/36/xml |
| article pdf uploaded. | 9 March 2018 02:55 CET | Version of Record | https://www.mdpi.com/2227-7102/8/1/36/pdf |
