| article html file updated | 7 February 2020 10:24 CET | Update | https://www.mdpi.com/2073-4360/8/6/238 |
| article html file updated | 21 September 2019 19:19 CEST | Update | N/A |
| article html file updated | 5 May 2019 12:31 CEST | Update | N/A |
| article html file updated | 27 March 2019 07:54 CET | Update | N/A |
| article html file updated | 18 March 2019 04:59 CET | Update | N/A |
| article html file updated | 29 June 2016 11:43 CEST | Update | N/A |
| article html file updated | 18 June 2016 08:10 CEST | Original file | N/A |
| article xml uploaded. | 18 June 2016 08:09 CEST | Original file | https://www.mdpi.com/2073-4360/8/6/238/xml |
| article pdf uploaded. | 18 June 2016 08:09 CEST | Version of Record | https://www.mdpi.com/2073-4360/8/6/238/pdf |
