| article html file updated | 7 February 2020 22:43 CET | Update | https://www.mdpi.com/1911-8074/10/1/6 |
| article html file updated | 23 September 2019 04:12 CEST | Update | - |
| article html file updated | 4 May 2019 12:36 CEST | Update | - |
| article html file updated | 30 March 2017 05:36 CEST | Update | - |
| article html file updated | 13 February 2017 09:08 CET | Original file | - |
| article xml uploaded. | 13 February 2017 09:02 CET | Update | https://www.mdpi.com/1911-8074/10/1/6/xml |
| article pdf uploaded. | 13 February 2017 09:02 CET | Updated version of record | https://www.mdpi.com/1911-8074/10/1/6/pdf |
| article xml uploaded. | 7 February 2017 14:47 CET | Original file | - |
| article pdf uploaded. | 5 February 2017 11:23 CET | Version of Record | https://www.mdpi.com/1911-8074/10/1/6/pdf-vor |
