| article html file updated | 7 February 2020 16:44 CET | Update | https://www.mdpi.com/2075-4434/4/4/47 |
| article html file updated | 5 May 2019 00:56 CEST | Update | N/A |
| article html file updated | 28 December 2016 08:26 CET | Update | N/A |
| article html file updated | 20 October 2016 13:05 CEST | Original file | N/A |
| article xml uploaded. | 20 October 2016 13:04 CEST | Update | https://www.mdpi.com/2075-4434/4/4/47/xml |
| article xml uploaded. | 20 October 2016 13:04 CEST | Original file | N/A |
| article pdf uploaded. | 20 October 2016 13:04 CEST | Version of Record | https://www.mdpi.com/2075-4434/4/4/47/pdf |
