| article html file updated | 7 February 2020 13:52 CET | Update | https://www.mdpi.com/2220-9964/5/9/151 |
| article html file updated | 5 May 2019 06:08 CEST | Update | N/A |
| article html file updated | 27 March 2019 14:44 CET | Update | N/A |
| article html file updated | 27 September 2016 09:37 CEST | Update | N/A |
| article html file updated | 25 August 2016 08:51 CEST | Original file | N/A |
| article xml uploaded. | 25 August 2016 08:49 CEST | Original file | https://www.mdpi.com/2220-9964/5/9/151/xml |
| article pdf uploaded. | 25 August 2016 08:49 CEST | Version of Record | https://www.mdpi.com/2220-9964/5/9/151/pdf |
