| article html file updated | 7 February 2020 13:23 CET | Update | https://www.mdpi.com/2227-7102/6/3/28 |
| article html file updated | 21 September 2019 23:03 CEST | Update | N/A |
| article html file updated | 5 May 2019 07:01 CEST | Update | N/A |
| article html file updated | 27 March 2019 13:45 CET | Update | N/A |
| article html file updated | 9 November 2017 12:35 CET | Update | N/A |
| article html file updated | 27 October 2017 10:03 CEST | Update | N/A |
| article html file updated | 16 August 2016 12:56 CEST | Original file | N/A |
| article xml uploaded. | 16 August 2016 12:54 CEST | Original file | https://www.mdpi.com/2227-7102/6/3/28/xml |
| article pdf uploaded. | 16 August 2016 12:54 CEST | Version of Record | https://www.mdpi.com/2227-7102/6/3/28/pdf |
