| article html file updated | 7 February 2020 22:12 CET | Update | https://www.mdpi.com/2073-4352/7/2/33 |
| article html file updated | 23 September 2019 01:24 CEST | Update | N/A |
| article html file updated | 4 May 2019 13:39 CEST | Update | N/A |
| article html file updated | 2 March 2017 03:36 CET | Update | N/A |
| article html file updated | 25 January 2017 08:50 CET | Original file | N/A |
| article xml uploaded. | 25 January 2017 08:49 CET | Original file | https://www.mdpi.com/2073-4352/7/2/33/xml |
| article pdf uploaded. | 25 January 2017 08:49 CET | Version of Record | https://www.mdpi.com/2073-4352/7/2/33/pdf |
