| article html file updated | 7 February 2020 20:24 CET | Update | https://www.mdpi.com/2076-3417/7/1/32 |
| article html file updated | 22 September 2019 15:47 CEST | Update | - |
| article html file updated | 4 May 2019 17:36 CEST | Update | - |
| article html file updated | 8 February 2017 09:06 CET | Update | - |
| article html file updated | 28 December 2016 05:38 CET | Update | - |
| article html file updated | 28 December 2016 05:35 CET | Original file | - |
| article xml uploaded. | 28 December 2016 05:12 CET | Update | https://www.mdpi.com/2076-3417/7/1/32/xml |
| article pdf uploaded. | 28 December 2016 05:12 CET | Updated version of record | https://www.mdpi.com/2076-3417/7/1/32/pdf |
| article xml uploaded. | 28 December 2016 05:02 CET | Original file | - |
| article pdf uploaded. | 28 December 2016 05:01 CET | Version of Record | - |
