| article html file updated | 7 February 2020 08:15 CET | Update | https://www.mdpi.com/2075-471X/5/2/20 |
| article html file updated | 21 September 2019 16:34 CEST | Update | N/A |
| article html file updated | 5 May 2019 16:40 CEST | Update | N/A |
| article html file updated | 27 March 2019 03:52 CET | Update | N/A |
| article html file updated | 5 May 2016 13:11 CEST | Original file | N/A |
| article xml uploaded. | 5 May 2016 13:10 CEST | Original file | https://www.mdpi.com/2075-471X/5/2/20/xml |
| article pdf uploaded. | 5 May 2016 13:10 CEST | Version of Record | https://www.mdpi.com/2075-471X/5/2/20/pdf |
