| article html file updated | 9 February 2020 11:05 CET | Update | https://www.mdpi.com/2220-9964/7/4/130 |
| article html file updated | 1 October 2019 22:23 CEST | Update | - |
| article html file updated | 1 May 2019 09:06 CEST | Update | - |
| article html file updated | 17 April 2019 09:01 CEST | Update | - |
| article html file updated | 29 March 2019 09:24 CET | Update | - |
| article html file updated | 1 May 2018 03:54 CEST | Update | - |
| article html file updated | 23 March 2018 17:55 CET | Original file | - |
| article xml uploaded. | 23 March 2018 17:54 CET | Update | https://www.mdpi.com/2220-9964/7/4/130/xml |
| article pdf uploaded. | 23 March 2018 17:54 CET | Version of Record | https://www.mdpi.com/2220-9964/7/4/130/pdf |
