| article html file updated | 8 February 2020 02:24 CET | Update | https://www.mdpi.com/2072-6643/9/4/333 |
| article html file updated | 24 September 2019 01:08 CEST | Update | N/A |
| article html file updated | 4 May 2019 04:41 CEST | Update | N/A |
| article html file updated | 28 April 2017 11:45 CEST | Update | N/A |
| article html file updated | 31 March 2017 12:51 CEST | Original file | N/A |
| article xml uploaded. | 31 March 2017 12:50 CEST | Original file | https://www.mdpi.com/2072-6643/9/4/333/xml |
| article pdf uploaded. | 31 March 2017 12:50 CEST | Updated version of record | https://www.mdpi.com/2072-6643/9/4/333/pdf |
| article pdf uploaded. | 28 March 2017 12:07 CEST | Version of Record | https://www.mdpi.com/2072-6643/9/4/333/pdf-vor |
