| article html file updated | 7 February 2020 07:25 CET | Update | https://www.mdpi.com/2072-6643/8/4/226 |
| article html file updated | 5 May 2019 18:19 CEST | Update | N/A |
| article html file updated | 27 March 2019 02:11 CET | Update | N/A |
| article html file updated | 28 April 2016 09:28 CEST | Update | N/A |
| article html file updated | 18 April 2016 11:46 CEST | Original file | N/A |
| article xml uploaded. | 18 April 2016 11:45 CEST | Original file | https://www.mdpi.com/2072-6643/8/4/226/xml |
| article pdf uploaded. | 18 April 2016 11:45 CEST | Version of Record | https://www.mdpi.com/2072-6643/8/4/226/pdf |
