| article html file updated | 8 February 2020 02:59 CET | Update | https://www.mdpi.com/2073-4352/7/4/103 |
| article html file updated | 24 September 2019 04:25 CEST | Update | - |
| article html file updated | 4 May 2019 03:24 CEST | Update | - |
| article html file updated | 28 April 2017 05:48 CEST | Update | - |
| article html file updated | 7 April 2017 22:21 CEST | Original file | - |
| article xml uploaded. | 7 April 2017 02:37 CEST | Update | https://www.mdpi.com/2073-4352/7/4/103/xml |
| article pdf uploaded. | 7 April 2017 02:37 CEST | Updated version of record | https://www.mdpi.com/2073-4352/7/4/103/pdf |
| article pdf uploaded. | 5 April 2017 14:20 CEST | Version of Record | https://www.mdpi.com/2073-4352/7/4/103/pdf-vor |
