| article html file updated | 8 February 2020 08:48 CET | Update | https://www.mdpi.com/2220-9964/6/6/178 |
| article html file updated | 25 September 2019 11:07 CEST | Update | N/A |
| article html file updated | 3 May 2019 16:29 CEST | Update | N/A |
| article html file updated | 27 June 2017 11:27 CEST | Update | N/A |
| article html file updated | 21 June 2017 05:27 CEST | Original file | N/A |
| article xml uploaded. | 21 June 2017 05:26 CEST | Original file | https://www.mdpi.com/2220-9964/6/6/178/xml |
| article pdf uploaded. | 21 June 2017 05:26 CEST | Updated version of record | https://www.mdpi.com/2220-9964/6/6/178/pdf |
| article pdf uploaded. | 20 June 2017 14:58 CEST | Version of Record | https://www.mdpi.com/2220-9964/6/6/178/pdf-vor |
