| article html file updated | 10 February 2020 23:33 CET | Update | https://www.mdpi.com/2227-9032/6/4/138 |
| article html file updated | 11 October 2019 01:07 CEST | Update | - |
| article html file updated | 28 April 2019 03:04 CEST | Update | - |
| article html file updated | 13 April 2019 23:10 CEST | Update | - |
| article html file updated | 2 April 2019 03:06 CEST | Update | - |
| article html file updated | 26 December 2018 20:58 CET | Update | - |
| article html file updated | 27 November 2018 13:29 CET | Original file | - |
| article pdf uploaded. | 27 November 2018 10:09 CET | Version of Record | https://www.mdpi.com/2227-9032/6/4/138/pdf |
| article xml uploaded. | 27 November 2018 10:09 CET | Update | https://www.mdpi.com/2227-9032/6/4/138/xml |
| article xml file uploaded | 27 November 2018 10:09 CET | Original file | - |
