| article html file updated | 6 February 2020 07:11 CET | Update | https://www.mdpi.com/2072-6643/6/2/627 |
| article html file updated | 7 May 2019 18:49 CEST | Update | - |
| article html file updated | 21 March 2019 12:08 CET | Update | - |
| article html file updated | 19 August 2015 19:58 CEST | Update | - |
| article html file updated | 18 March 2014 09:55 CET | Original file | - |
| article xml file uploaded | 18 March 2014 09:55 CET | Original file | https://www.mdpi.com/2072-6643/6/2/627/xml |
| article pdf uploaded. | 10 February 2014 13:59 CET | Version of Record | https://www.mdpi.com/2072-6643/6/2/627/pdf |
