| article html file updated | 7 February 2020 02:45 CET | Update | https://www.mdpi.com/2072-4292/8/1/15 |
| article html file updated | 6 May 2019 03:52 CEST | Update | N/A |
| article html file updated | 26 March 2019 17:19 CET | Original file | N/A |
| article xml uploaded. | 25 December 2015 10:33 CET | Original file | https://www.mdpi.com/2072-4292/8/1/15/xml |
| article pdf uploaded. | 25 December 2015 10:31 CET | Version of Record | https://www.mdpi.com/2072-4292/8/1/15/pdf |
