| article html file updated | 11 February 2020 19:12 CET | Update | https://www.mdpi.com/2226-471X/4/1/15 |
| article html file updated | 26 April 2019 09:54 CEST | Update | - |
| article html file updated | 12 April 2019 05:26 CEST | Update | - |
| article html file updated | 4 April 2019 05:12 CEST | Update | - |
| article html file updated | 28 February 2019 13:34 CET | Original file | - |
| article pdf uploaded. | 28 February 2019 13:32 CET | Version of Record | https://www.mdpi.com/2226-471X/4/1/15/pdf |
| article xml uploaded. | 28 February 2019 13:32 CET | Update | https://www.mdpi.com/2226-471X/4/1/15/xml |
| article xml file uploaded | 28 February 2019 13:32 CET | Original file | - |
