| article html file updated | 7 February 2020 12:58 CET | Update | https://www.mdpi.com/2220-9964/5/8/137 |
| article html file updated | 5 May 2019 07:45 CEST | Update | N/A |
| article html file updated | 27 March 2019 12:56 CET | Update | N/A |
| article html file updated | 30 August 2016 03:48 CEST | Update | N/A |
| article html file updated | 9 August 2016 09:01 CEST | Update | N/A |
| article html file updated | 6 August 2016 12:12 CEST | Original file | N/A |
| article xml uploaded. | 6 August 2016 12:11 CEST | Update | https://www.mdpi.com/2220-9964/5/8/137/xml |
| article pdf uploaded. | 6 August 2016 12:11 CEST | Version of Record | https://www.mdpi.com/2220-9964/5/8/137/pdf |
