| article html file updated | 8 February 2020 03:01 CET | Update | https://www.mdpi.com/2075-4442/5/2/9 |
| article html file updated | 4 May 2019 03:19 CEST | Update | - |
| article html file updated | 30 June 2017 09:08 CEST | Update | - |
| article html file updated | 7 April 2017 03:15 CEST | Update | - |
| article xml uploaded. | 7 April 2017 03:14 CEST | Update | https://www.mdpi.com/2075-4442/5/2/9/xml |
| article pdf uploaded. | 7 April 2017 03:14 CEST | Version of Record | https://www.mdpi.com/2075-4442/5/2/9/pdf |
| article html file updated | 7 April 2017 02:47 CEST | Original file | - |
