| article html file updated | 7 February 2020 20:46 CET | Update | https://www.mdpi.com/2227-7102/7/1/8 |
| article html file updated | 22 September 2019 17:47 CEST | Update | N/A |
| article html file updated | 4 May 2019 16:50 CEST | Update | N/A |
| article html file updated | 27 October 2017 09:54 CEST | Update | N/A |
| article html file updated | 20 January 2017 05:45 CET | Update | N/A |
| article xml uploaded. | 20 January 2017 05:44 CET | Update | https://www.mdpi.com/2227-7102/7/1/8/xml |
| article pdf uploaded. | 20 January 2017 05:44 CET | Updated version of record | https://www.mdpi.com/2227-7102/7/1/8/pdf |
| article html file updated | 4 January 2017 10:51 CET | Original file | N/A |
| article pdf uploaded. | 4 January 2017 10:50 CET | Version of Record | https://www.mdpi.com/2227-7102/7/1/8/pdf-vor |
