| article html file updated | 8 February 2020 13:42 CET | Update | https://www.mdpi.com/2220-9964/6/8/254 |
| article html file updated | 26 September 2019 14:03 CEST | Update | - |
| article html file updated | 3 May 2019 06:38 CEST | Update | - |
| article html file updated | 27 March 2019 21:10 CET | Update | - |
| article html file updated | 1 September 2017 07:11 CEST | Update | - |
| article html file updated | 17 August 2017 06:17 CEST | Original file | - |
| article xml uploaded. | 17 August 2017 06:16 CEST | Original file | https://www.mdpi.com/2220-9964/6/8/254/xml |
| article pdf uploaded. | 17 August 2017 06:16 CEST | Updated version of record | https://www.mdpi.com/2220-9964/6/8/254/pdf |
| article pdf uploaded. | 16 August 2017 14:31 CEST | Version of Record | https://www.mdpi.com/2220-9964/6/8/254/pdf-vor |
