| article html file updated | 6 February 2020 07:33 CET | Update | https://www.mdpi.com/2078-1547/5/1/98 |
| article html file updated | 7 May 2019 18:03 CEST | Update | N/A |
| article html file updated | 21 March 2019 13:02 CET | Update | N/A |
| article html file updated | 19 August 2015 21:52 CEST | Update | N/A |
| article html file updated | 24 June 2014 12:04 CEST | Original file | N/A |
| article xml file uploaded | 24 June 2014 12:04 CEST | Original file | https://www.mdpi.com/2078-1547/5/1/98/xml |
| article pdf uploaded. | 26 February 2014 15:05 CET | Updated version of record | https://www.mdpi.com/2078-1547/5/1/98/pdf |
| article pdf uploaded. | 26 February 2014 15:03 CET | Version of Record | N/A |
