| article html file updated | 7 February 2020 23:52 CET | Update | https://www.mdpi.com/1999-4915/9/2/35 |
| article html file updated | 23 September 2019 10:36 CEST | Update | N/A |
| article html file updated | 4 May 2019 10:18 CEST | Update | N/A |
| article html file updated | 2 March 2017 03:41 CET | Update | N/A |
| article html file updated | 21 February 2017 09:22 CET | Original file | N/A |
| article xml uploaded. | 21 February 2017 09:21 CET | Original file | https://www.mdpi.com/1999-4915/9/2/35/xml |
| article pdf uploaded. | 21 February 2017 09:21 CET | Version of Record | https://www.mdpi.com/1999-4915/9/2/35/pdf |
