| article html file updated | 8 February 2020 03:27 CET | Update | https://www.mdpi.com/1911-8074/10/2/8 |
| article html file updated | 24 September 2019 06:55 CEST | Update | N/A |
| article html file updated | 4 May 2019 02:28 CEST | Update | N/A |
| article html file updated | 29 June 2017 11:32 CEST | Update | N/A |
| article html file updated | 13 April 2017 12:25 CEST | Original file | N/A |
| article xml uploaded. | 13 April 2017 12:24 CEST | Original file | https://www.mdpi.com/1911-8074/10/2/8/xml |
| article pdf uploaded. | 13 April 2017 12:24 CEST | Updated version of record | https://www.mdpi.com/1911-8074/10/2/8/pdf |
| article pdf uploaded. | 12 April 2017 14:37 CEST | Version of Record | https://www.mdpi.com/1911-8074/10/2/8/pdf-vor |
