| article html file updated | 7 February 2020 12:39 CET | Update | https://www.mdpi.com/2075-4450/7/3/39 |
| article html file updated | 21 September 2019 22:09 CEST | Update | N/A |
| article html file updated | 5 May 2019 08:22 CEST | Update | N/A |
| article html file updated | 27 March 2019 12:03 CET | Update | N/A |
| article html file updated | 28 September 2016 22:53 CEST | Update | N/A |
| article html file updated | 1 August 2016 11:14 CEST | Original file | N/A |
| article xml uploaded. | 1 August 2016 11:13 CEST | Original file | https://www.mdpi.com/2075-4450/7/3/39/xml |
| article pdf uploaded. | 1 August 2016 11:13 CEST | Version of Record | https://www.mdpi.com/2075-4450/7/3/39/pdf |
