| article html file updated | 7 February 2020 07:38 CET | Update | https://www.mdpi.com/2075-4698/6/2/13 |
| article html file updated | 5 May 2019 17:52 CEST | Update | N/A |
| article html file updated | 27 March 2019 02:40 CET | Update | N/A |
| article html file updated | 1 July 2016 12:50 CEST | Update | N/A |
| article html file updated | 22 April 2016 11:40 CEST | Original file | N/A |
| article xml uploaded. | 22 April 2016 11:38 CEST | Original file | https://www.mdpi.com/2075-4698/6/2/13/xml |
| article pdf uploaded. | 22 April 2016 11:38 CEST | Version of Record | https://www.mdpi.com/2075-4698/6/2/13/pdf |
