| article html file updated | 7 February 2020 13:46 CET | Update | https://www.mdpi.com/2076-2615/6/9/50 |
| article html file updated | 5 May 2019 06:19 CEST | Update | N/A |
| article html file updated | 27 March 2019 14:31 CET | Update | N/A |
| article html file updated | 26 September 2016 08:34 CEST | Update | N/A |
| article html file updated | 23 August 2016 15:08 CEST | Original file | N/A |
| article xml uploaded. | 23 August 2016 15:06 CEST | Update | https://www.mdpi.com/2076-2615/6/9/50/xml |
| article xml uploaded. | 23 August 2016 15:06 CEST | Original file | N/A |
| article pdf uploaded. | 23 August 2016 15:06 CEST | Version of Record | https://www.mdpi.com/2076-2615/6/9/50/pdf |
