| article html file updated | 9 February 2020 08:24 CET | Update | https://www.mdpi.com/2076-3921/7/3/38 |
| article html file updated | 1 October 2019 05:26 CEST | Update | - |
| article html file updated | 1 May 2019 14:45 CEST | Update | - |
| article html file updated | 17 April 2019 14:20 CEST | Update | - |
| article html file updated | 29 March 2019 03:23 CET | Update | - |
| article html file updated | 26 March 2018 13:11 CEST | Update | - |
| article html file updated | 2 March 2018 11:06 CET | Original file | - |
| article xml uploaded. | 2 March 2018 11:05 CET | Original file | https://www.mdpi.com/2076-3921/7/3/38/xml |
| article pdf uploaded. | 2 March 2018 11:05 CET | Version of Record | https://www.mdpi.com/2076-3921/7/3/38/pdf |
