| article html file updated | 7 February 2020 12:20 CET | Update | https://www.mdpi.com/2075-1729/6/3/28 |
| article html file updated | 5 May 2019 08:59 CEST | Update | N/A |
| article html file updated | 27 March 2019 11:28 CET | Update | N/A |
| article html file updated | 29 September 2016 09:48 CEST | Update | N/A |
| article html file updated | 26 July 2016 11:56 CEST | Original file | N/A |
| article xml uploaded. | 26 July 2016 11:55 CEST | Original file | https://www.mdpi.com/2075-1729/6/3/28/xml |
| article pdf uploaded. | 26 July 2016 11:55 CEST | Version of Record | https://www.mdpi.com/2075-1729/6/3/28/pdf |
