| article html file updated | 8 February 2020 02:06 CET | Update | https://www.mdpi.com/2072-6643/9/4/316 |
| article html file updated | 23 September 2019 23:36 CEST | Update | N/A |
| article html file updated | 4 May 2019 05:18 CEST | Update | N/A |
| article html file updated | 28 April 2017 11:54 CEST | Update | N/A |
| article html file updated | 27 March 2017 05:29 CEST | Update | N/A |
| article html file updated | 23 March 2017 14:48 CET | Original file | N/A |
| article xml uploaded. | 23 March 2017 14:47 CET | Update | https://www.mdpi.com/2072-6643/9/4/316/xml |
| article pdf uploaded. | 23 March 2017 14:47 CET | Version of Record | https://www.mdpi.com/2072-6643/9/4/316/pdf |
