| article html file updated | 9 February 2020 14:40 CET | Update | https://www.mdpi.com/2220-9964/7/4/156 |
| article html file updated | 2 October 2019 19:47 CEST | Update | - |
| article html file updated | 1 May 2019 01:50 CEST | Update | - |
| article html file updated | 17 April 2019 02:24 CEST | Update | - |
| article html file updated | 29 March 2019 17:38 CET | Update | - |
| article html file updated | 1 May 2018 04:03 CEST | Update | - |
| article html file updated | 20 April 2018 12:45 CEST | Original file | - |
| article pdf uploaded. | 20 April 2018 12:44 CEST | Version of Record | https://www.mdpi.com/2220-9964/7/4/156/pdf |
| article xml uploaded. | 20 April 2018 12:44 CEST | Update | https://www.mdpi.com/2220-9964/7/4/156/xml |
| article xml file uploaded | 20 April 2018 12:44 CEST | Original file | - |
