| article html file updated | 8 February 2020 11:31 CET | Update | https://www.mdpi.com/1999-4907/8/7/259 |
| article html file updated | 3 May 2019 11:23 CEST | Update | N/A |
| article html file updated | 27 March 2019 16:45 CET | Update | N/A |
| article html file updated | 1 August 2017 08:46 CEST | Update | N/A |
| article html file updated | 20 July 2017 16:33 CEST | Update | N/A |
| article html file updated | 20 July 2017 16:32 CEST | Update | N/A |
| article html file updated | 20 July 2017 16:31 CEST | Original file | N/A |
| article xml uploaded. | 20 July 2017 16:30 CEST | Original file | https://www.mdpi.com/1999-4907/8/7/259/xml |
| article pdf uploaded. | 20 July 2017 16:30 CEST | Version of Record | https://www.mdpi.com/1999-4907/8/7/259/pdf |
