| article html file updated | 8 February 2020 02:45 CET | Update | https://www.mdpi.com/2072-6643/9/4/347 |
| article html file updated | 24 September 2019 03:07 CEST | Update | - |
| article html file updated | 4 May 2019 03:55 CEST | Update | - |
| article html file updated | 28 April 2017 11:46 CEST | Update | - |
| article html file updated | 1 April 2017 11:49 CEST | Original file | - |
| article xml uploaded. | 1 April 2017 11:48 CEST | Original file | https://www.mdpi.com/2072-6643/9/4/347/xml |
| article pdf uploaded. | 1 April 2017 11:48 CEST | Version of Record | https://www.mdpi.com/2072-6643/9/4/347/pdf |
