| article html file updated | 11 February 2020 20:40 CET | Update | https://www.mdpi.com/1911-8074/12/1/39 |
| article html file updated | 16 October 2019 05:18 CEST | Update | - |
| article html file updated | 26 April 2019 06:33 CEST | Update | - |
| article html file updated | 12 April 2019 01:49 CEST | Update | - |
| article html file updated | 10 April 2019 22:42 CEST | Update | - |
| article html file updated | 4 April 2019 09:01 CEST | Update | - |
| article html file updated | 7 March 2019 09:23 CET | Original file | - |
| article pdf uploaded. | 7 March 2019 09:22 CET | Version of Record | https://www.mdpi.com/1911-8074/12/1/39/pdf |
| article xml uploaded. | 7 March 2019 09:22 CET | Update | https://www.mdpi.com/1911-8074/12/1/39/xml |
| article xml file uploaded | 7 March 2019 09:22 CET | Original file | - |
