| article html file updated | 7 February 2020 06:40 CET | Update | https://www.mdpi.com/2079-6439/4/2/12 |
| article html file updated | 5 May 2019 19:54 CEST | Update | N/A |
| article html file updated | 27 March 2019 00:45 CET | Update | N/A |
| article html file updated | 1 July 2016 11:59 CEST | Update | N/A |
| article html file updated | 31 March 2016 09:46 CEST | Original file | N/A |
| article xml uploaded. | 31 March 2016 09:44 CEST | Update | https://www.mdpi.com/2079-6439/4/2/12/xml |
| article pdf uploaded. | 31 March 2016 09:44 CEST | Version of Record | https://www.mdpi.com/2079-6439/4/2/12/pdf |
