| article html file updated | 6 February 2020 12:36 CET | Update | https://www.mdpi.com/2076-328X/4/4/341 |
| article html file updated | 20 September 2019 13:26 CEST | Update | N/A |
| article html file updated | 7 May 2019 07:35 CEST | Update | N/A |
| article html file updated | 22 March 2019 01:55 CET | Update | N/A |
| article html file updated | 20 August 2015 21:50 CEST | Update | N/A |
| article html file updated | 30 December 2014 09:31 CET | Original file | N/A |
| article xml file uploaded | 30 December 2014 09:31 CET | Original file | https://www.mdpi.com/2076-328X/4/4/341/xml |
| article pdf uploaded. | 29 September 2014 15:53 CEST | Version of Record | https://www.mdpi.com/2076-328X/4/4/341/pdf |
