| article html file updated | 8 February 2020 05:59 CET | Update | https://www.mdpi.com/2072-6643/9/5/502 |
| article html file updated | 24 September 2019 20:35 CEST | Update | - |
| article html file updated | 3 May 2019 21:48 CEST | Update | - |
| article html file updated | 1 June 2017 07:32 CEST | Update | - |
| article html file updated | 23 May 2017 04:19 CEST | Update | - |
| article html file updated | 16 May 2017 13:47 CEST | Original file | - |
| article xml uploaded. | 16 May 2017 13:46 CEST | Original file | https://www.mdpi.com/2072-6643/9/5/502/xml |
| article pdf uploaded. | 16 May 2017 13:46 CEST | Version of Record | https://www.mdpi.com/2072-6643/9/5/502/pdf |
