| article html file updated | 6 February 2020 15:53 CET | Update | https://www.mdpi.com/2072-4292/7/2/1981 |
| article html file updated | 7 May 2019 01:06 CEST | Update | N/A |
| article html file updated | 25 March 2019 21:40 CET | Update | N/A |
| article html file updated | 21 August 2015 07:26 CEST | Update | N/A |
| article html file updated | 17 March 2015 12:06 CET | Original file | N/A |
| article xml file uploaded | 17 March 2015 12:06 CET | Original file | https://www.mdpi.com/2072-4292/7/2/1981/xml |
| article pdf uploaded. | 11 February 2015 11:58 CET | Version of Record | https://www.mdpi.com/2072-4292/7/2/1981/pdf |
