| article html file updated | 7 February 2020 07:05 CET | Update | https://www.mdpi.com/2072-6643/8/4/213 |
| article html file updated | 5 May 2019 18:59 CEST | Update | N/A |
| article html file updated | 27 March 2019 01:33 CET | Update | N/A |
| article html file updated | 28 April 2016 09:25 CEST | Update | N/A |
| article html file updated | 11 April 2016 13:09 CEST | Original file | N/A |
| article xml uploaded. | 11 April 2016 13:08 CEST | Original file | https://www.mdpi.com/2072-6643/8/4/213/xml |
| article pdf uploaded. | 11 April 2016 13:08 CEST | Version of Record | https://www.mdpi.com/2072-6643/8/4/213/pdf |
