| article html file updated | 8 February 2020 20:05 CET | Update | https://www.mdpi.com/2227-9032/5/4/83 |
| article html file updated | 28 September 2019 04:09 CEST | Update | N/A |
| article html file updated | 2 May 2019 17:32 CEST | Update | N/A |
| article html file updated | 2 January 2018 12:42 CET | Update | N/A |
| article html file updated | 1 November 2017 13:17 CET | Original file | N/A |
| article xml uploaded. | 1 November 2017 13:16 CET | Original file | https://www.mdpi.com/2227-9032/5/4/83/xml |
| article pdf uploaded. | 1 November 2017 13:16 CET | Version of Record | https://www.mdpi.com/2227-9032/5/4/83/pdf |
