| article html file updated | 7 February 2020 07:53 CET | Update | https://www.mdpi.com/2079-7737/5/2/18 |
| article html file updated | 5 May 2019 17:24 CEST | Update | N/A |
| article html file updated | 27 March 2019 03:09 CET | Update | N/A |
| article html file updated | 1 July 2016 12:15 CEST | Update | N/A |
| article html file updated | 27 April 2016 14:18 CEST | Original file | N/A |
| article xml uploaded. | 27 April 2016 14:16 CEST | Original file | https://www.mdpi.com/2079-7737/5/2/18/xml |
| article pdf uploaded. | 27 April 2016 14:16 CEST | Version of Record | https://www.mdpi.com/2079-7737/5/2/18/pdf |
