| article html file updated | 7 February 2020 08:57 CET | Update | https://www.mdpi.com/2075-4442/4/2/15 |
| article html file updated | 5 May 2019 15:19 CEST | Update | N/A |
| article html file updated | 27 March 2019 05:09 CET | Update | N/A |
| article html file updated | 19 May 2016 11:32 CEST | Original file | N/A |
| article xml uploaded. | 19 May 2016 11:31 CEST | Original file | https://www.mdpi.com/2075-4442/4/2/15/xml |
| article pdf uploaded. | 19 May 2016 11:31 CEST | Version of Record | https://www.mdpi.com/2075-4442/4/2/15/pdf |
