| article html file updated | 8 February 2020 02:16 CET | Update | https://www.mdpi.com/2075-5309/7/2/28 |
| article html file updated | 24 September 2019 00:19 CEST | Update | - |
| article html file updated | 4 May 2019 05:01 CEST | Update | - |
| article html file updated | 28 June 2017 12:44 CEST | Update | - |
| article html file updated | 27 March 2017 05:49 CEST | Update | - |
| article html file updated | 27 March 2017 05:33 CEST | Update | - |
| article html file updated | 26 March 2017 22:33 CEST | Update | - |
| article html file updated | 25 March 2017 22:36 CET | Update | - |
| article html file updated | 25 March 2017 11:07 CET | Original file | - |
| article xml uploaded. | 25 March 2017 11:06 CET | Original file | https://www.mdpi.com/2075-5309/7/2/28/xml |
| article pdf uploaded. | 25 March 2017 11:06 CET | Version of Record | https://www.mdpi.com/2075-5309/7/2/28/pdf |
