| article html file updated | 9 February 2020 05:28 CET | Update | https://www.mdpi.com/2075-4450/9/1/15 |
| article html file updated | 1 May 2019 21:06 CEST | Update | - |
| article html file updated | 17 April 2019 20:01 CEST | Update | - |
| article html file updated | 28 March 2019 20:48 CET | Update | - |
| article html file updated | 27 March 2018 14:32 CEST | Update | - |
| article html file updated | 5 February 2018 03:54 CET | Update | - |
| article xml uploaded. | 5 February 2018 03:53 CET | Update | https://www.mdpi.com/2075-4450/9/1/15/xml |
| article xml uploaded. | 5 February 2018 03:53 CET | Update | - |
| article pdf uploaded. | 5 February 2018 03:53 CET | Updated version of record | https://www.mdpi.com/2075-4450/9/1/15/pdf |
| article html file updated | 3 February 2018 14:11 CET | Original file | - |
| article xml uploaded. | 3 February 2018 14:10 CET | Original file | - |
| article pdf uploaded. | 3 February 2018 14:10 CET | Version of Record | https://www.mdpi.com/2075-4450/9/1/15/pdf-vor |
