| article html file updated | 7 February 2020 10:32 CET | Update | https://www.mdpi.com/2075-4442/4/2/22 |
| article html file updated | 5 May 2019 12:13 CEST | Update | N/A |
| article html file updated | 27 March 2019 08:09 CET | Update | N/A |
| article html file updated | 22 June 2016 09:00 CEST | Original file | N/A |
| article xml uploaded. | 22 June 2016 08:59 CEST | Original file | https://www.mdpi.com/2075-4442/4/2/22/xml |
| article pdf uploaded. | 22 June 2016 08:59 CEST | Version of Record | https://www.mdpi.com/2075-4442/4/2/22/pdf |
