| article html file updated | 8 February 2020 04:38 CET | Update | https://www.mdpi.com/2220-9964/6/5/135 |
| article html file updated | 24 September 2019 13:33 CEST | Update | - |
| article html file updated | 4 May 2019 00:17 CEST | Update | - |
| article html file updated | 31 May 2017 10:00 CEST | Update | - |
| article html file updated | 28 April 2017 13:52 CEST | Original file | - |
| article xml uploaded. | 28 April 2017 13:51 CEST | Original file | https://www.mdpi.com/2220-9964/6/5/135/xml |
| article pdf uploaded. | 28 April 2017 13:51 CEST | Version of Record | https://www.mdpi.com/2220-9964/6/5/135/pdf |
