| article html file updated | 7 February 2020 12:42 CET | Update | https://www.mdpi.com/2075-1729/6/3/29 |
| article html file updated | 5 May 2019 08:17 CEST | Update | N/A |
| article html file updated | 27 March 2019 12:11 CET | Update | N/A |
| article html file updated | 29 September 2016 09:48 CEST | Update | N/A |
| article html file updated | 2 August 2016 10:23 CEST | Original file | N/A |
| article xml uploaded. | 2 August 2016 10:22 CEST | Update | https://www.mdpi.com/2075-1729/6/3/29/xml |
| article pdf uploaded. | 2 August 2016 10:22 CEST | Version of Record | https://www.mdpi.com/2075-1729/6/3/29/pdf |
