| article html file updated | 9 February 2020 18:36 CET | Update | https://www.mdpi.com/2218-273X/8/2/30 |
| article html file updated | 30 April 2019 17:39 CEST | Update | - |
| article html file updated | 16 April 2019 18:05 CEST | Update | - |
| article html file updated | 30 March 2019 03:28 CET | Update | - |
| article html file updated | 22 May 2018 14:12 CEST | Original file | - |
| article pdf uploaded. | 22 May 2018 14:11 CEST | Version of Record | https://www.mdpi.com/2218-273X/8/2/30/pdf |
| article xml uploaded. | 22 May 2018 14:11 CEST | Update | https://www.mdpi.com/2218-273X/8/2/30/xml |
| article xml file uploaded | 22 May 2018 14:11 CEST | Original file | - |
