| article html file updated | 8 February 2020 05:41 CET | Update | https://www.mdpi.com/2073-4425/8/5/138 |
| article html file updated | 24 September 2019 19:00 CEST | Update | - |
| article html file updated | 3 May 2019 22:23 CEST | Update | - |
| article html file updated | 31 May 2017 06:54 CEST | Update | - |
| article html file updated | 23 May 2017 04:06 CEST | Update | - |
| article html file updated | 12 May 2017 10:28 CEST | Original file | - |
| article xml uploaded. | 12 May 2017 10:26 CEST | Original file | https://www.mdpi.com/2073-4425/8/5/138/xml |
| article pdf uploaded. | 12 May 2017 10:26 CEST | Version of Record | https://www.mdpi.com/2073-4425/8/5/138/pdf |
