| article html file updated | 9 February 2020 13:07 CET | Update | https://www.mdpi.com/2227-9067/5/4/48 |
| article html file updated | 2 October 2019 10:31 CEST | Update | N/A |
| article html file updated | 1 May 2019 04:53 CEST | Update | N/A |
| article html file updated | 17 April 2019 05:08 CEST | Update | N/A |
| article html file updated | 29 March 2019 14:03 CET | Update | N/A |
| article html file updated | 1 May 2018 05:23 CEST | Update | N/A |
| article html file updated | 9 April 2018 14:55 CEST | Original file | N/A |
| article xml uploaded. | 9 April 2018 14:54 CEST | Original file | https://www.mdpi.com/2227-9067/5/4/48/xml |
| article pdf uploaded. | 9 April 2018 14:54 CEST | Version of Record | https://www.mdpi.com/2227-9067/5/4/48/pdf |
