| article html file updated | 7 February 2020 23:51 CET | Update | https://www.mdpi.com/2075-5309/7/1/15 |
| article html file updated | 23 September 2019 10:32 CEST | Update | N/A |
| article html file updated | 4 May 2019 10:20 CEST | Update | N/A |
| article html file updated | 29 March 2017 09:38 CEST | Update | N/A |
| article html file updated | 21 February 2017 03:04 CET | Original file | N/A |
| article xml uploaded. | 21 February 2017 03:03 CET | Original file | https://www.mdpi.com/2075-5309/7/1/15/xml |
| article pdf uploaded. | 21 February 2017 03:03 CET | Version of Record | https://www.mdpi.com/2075-5309/7/1/15/pdf |
