| article html file updated | 8 February 2020 03:30 CET | Update | https://www.mdpi.com/2220-9964/6/4/118 |
| article html file updated | 24 September 2019 07:13 CEST | Update | - |
| article html file updated | 4 May 2019 02:22 CEST | Update | - |
| article html file updated | 28 April 2017 08:18 CEST | Update | - |
| article html file updated | 14 April 2017 09:57 CEST | Original file | - |
| article xml uploaded. | 14 April 2017 09:56 CEST | Original file | https://www.mdpi.com/2220-9964/6/4/118/xml |
| article pdf uploaded. | 14 April 2017 09:56 CEST | Version of Record | https://www.mdpi.com/2220-9964/6/4/118/pdf |
