| article html file updated | 7 February 2020 06:48 CET | Update | https://www.mdpi.com/2075-4450/7/2/12 |
| article html file updated | 5 May 2019 19:38 CEST | Update | N/A |
| article html file updated | 27 March 2019 00:59 CET | Update | N/A |
| article html file updated | 4 July 2016 10:33 CEST | Update | N/A |
| article html file updated | 2 April 2016 12:43 CEST | Original file | N/A |
| article xml uploaded. | 2 April 2016 12:42 CEST | Original file | https://www.mdpi.com/2075-4450/7/2/12/xml |
| article pdf uploaded. | 2 April 2016 12:42 CEST | Version of Record | https://www.mdpi.com/2075-4450/7/2/12/pdf |
