| article html file updated | 7 February 2020 20:08 CET | Update | https://www.mdpi.com/2076-3417/7/1/15 |
| article html file updated | 22 September 2019 14:16 CEST | Update | N/A |
| article html file updated | 4 May 2019 18:09 CEST | Update | N/A |
| article html file updated | 8 February 2017 08:49 CET | Update | N/A |
| article html file updated | 22 December 2016 12:37 CET | Original file | N/A |
| article xml uploaded. | 22 December 2016 12:36 CET | Original file | https://www.mdpi.com/2076-3417/7/1/15/xml |
| article pdf uploaded. | 22 December 2016 12:36 CET | Version of Record | https://www.mdpi.com/2076-3417/7/1/15/pdf |
