| article html file updated | 6 February 2020 16:54 CET | Update | https://www.mdpi.com/2076-328X/5/1/121 |
| article html file updated | 6 May 2019 23:15 CEST | Update | - |
| article html file updated | 25 March 2019 23:26 CET | Update | - |
| article html file updated | 21 August 2015 09:12 CEST | Update | - |
| article html file updated | 3 April 2015 12:06 CEST | Original file | - |
| article xml file uploaded | 3 April 2015 12:06 CEST | Original file | https://www.mdpi.com/2076-328X/5/1/121/xml |
| article pdf uploaded. | 23 March 2015 15:33 CET | Version of Record | https://www.mdpi.com/2076-328X/5/1/121/pdf |
