| article html file updated | 8 February 2020 13:09 CET | Update | https://www.mdpi.com/2227-7102/7/3/68 |
| article html file updated | 26 September 2019 10:50 CEST | Update | N/A |
| article html file updated | 3 May 2019 07:44 CEST | Update | N/A |
| article html file updated | 27 March 2019 20:00 CET | Update | N/A |
| article html file updated | 27 October 2017 09:59 CEST | Update | N/A |
| article html file updated | 9 August 2017 13:48 CEST | Original file | N/A |
| article xml uploaded. | 9 August 2017 13:47 CEST | Original file | https://www.mdpi.com/2227-7102/7/3/68/xml |
| article pdf uploaded. | 9 August 2017 13:47 CEST | Version of Record | https://www.mdpi.com/2227-7102/7/3/68/pdf |
