| article html file updated | 7 February 2020 04:51 CET | Update | https://www.mdpi.com/2076-3387/6/1/3 |
| article html file updated | 5 May 2019 23:39 CEST | Update | - |
| article html file updated | 26 March 2019 21:21 CET | Update | - |
| article html file updated | 9 November 2017 12:20 CET | Update | - |
| article html file updated | 2 December 2016 08:42 CET | Original file | - |
| article xml uploaded. | 2 December 2016 08:40 CET | Update | https://www.mdpi.com/2076-3387/6/1/3/xml |
| article pdf uploaded. | 2 December 2016 08:40 CET | Updated version of record | https://www.mdpi.com/2076-3387/6/1/3/pdf |
| article pdf uploaded. | 23 February 2016 11:09 CET | Version of Record | - |
| article xml uploaded. | 23 February 2016 11:09 CET | Original file | - |
