| article html file updated | 8 February 2020 03:39 CET | Update | https://www.mdpi.com/2072-6643/9/4/390 |
| article html file updated | 24 September 2019 08:10 CEST | Update | - |
| article html file updated | 4 May 2019 02:05 CEST | Update | - |
| article html file updated | 28 April 2017 11:51 CEST | Update | - |
| article html file updated | 18 April 2017 10:15 CEST | Original file | - |
| article xml uploaded. | 18 April 2017 10:14 CEST | Original file | https://www.mdpi.com/2072-6643/9/4/390/xml |
| article pdf uploaded. | 18 April 2017 10:14 CEST | Updated version of record | https://www.mdpi.com/2072-6643/9/4/390/pdf |
| article pdf uploaded. | 15 April 2017 06:07 CEST | Version of Record | https://www.mdpi.com/2072-6643/9/4/390/pdf-vor |
